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Copyright of Fishery Modernization is the property of Fishery Modernization Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pearl River is the property of Pearl River Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] Long-narrow confined spaces, while facilitating the mobility and daily lives of urban and rural residents, also pose fire safety concerns. Catastrophic combustion phenomena in such a space can result in significant casualties and property damage. Owing to the coupling effect of the long-narrow space and longitudinal ventilation, the fire plume and smoke layer behavior significantly differ from that of conventional buildings. Therefore, studying fire behavior and smoke spread characteristics under limited boundary conditions holds great scientific significance in thermal safety engineering. Research-oriented experimental teaching plays a crucial role in achieving the educational goals of fire engineering majors. Through scientific research-expanding experiments, students can consolidate and deepen their understanding of combustion science, fire dynamics, and smoke control engineering. It also improves students' independent analysis, problem-solving, comprehensive design, and innovation abilities. Furthermore, a trinity experimental teaching program was established to improve the practical teaching effect by integrating virtual entities, scientific research teaching, and theory experiments. This teaching approach involves conducting physical experiments to observe phenomena, record data, and analyze results. The virtual experiment establishes a virtual simulation scene to simulate the computational fluid dynamics of fluid motion in a fire, uses numerical methods to solve the NS equation of low Mach number flow driven by fire buoyancy, and observes the dynamic flow field parameters through the field simulation results. Building a full-scale test platform for fire science research considering the unique characteristics and high aspect ratio of a long-narrow confined space is difficult. Therefore, downscale experiments are commonly used because of their convenience and cost- effectiveness. [Methods] In this paper, a medium-scale experimental platform is selected for the experimental teaching program. Using a medium-sized experimental platform, the overall arrangement of physical experiments is based on experimental design, system construction, experimental operation, and teaching results. The characteristics of the fire plumes, flame propagation rates, and distribution patterns of fire smoke temperature were investigated. Using PyroSim to establish virtual simulation scenarios, FDS for simulation calculations, and field simulation diagrams to record experimental teaching results, we could perceive the dynamic process of fire occurrence and development. We also analyzed experimental results, such as temperature, velocity vector, and smoke concentration. [Results] The following findings were observed: 1 under longitudinal ventilation conditions, owing to forced convection or buoyancy-induced natural convection, the flame inclines downstream, and the inclination angle increases with the increase in ventilation velocity. 2 Higher wind speeds result in fast changes in the position of the pyrolysis front, increasing flame propagation rates. 3 An increase in wind speed facilitates the expulsion of hot smoke, and the temperature changes with the flow of hot smoke. 4 Temperature differences are observed on both sides of the fire source under the influence of ventilation, and the temperature on the downwind side decreases as the distance from the fire source increases. 5 The wind speed in the smoke backflow region was lower than in other areas. Combustion science, fire dynamics, and smoke control engineering are the core subjects of the fire protection engineering undergraduate program. Owing to classroom instruction constraints, students' understanding of the subject matter is primarily theoretical. However, a three-dimensional understanding of the theoretical concepts can be gained when combined with experiments. This experimental teaching content enhances students' comprehensive abilities to analyze and solve problems during the experimental process, effectively shaping their innovative and practical capabilities. [ABSTRACT FROM AUTHOR]

Copyright of China Sciencepaper is the property of China Sciencepaper and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Nonferrous Metals (Extractive Metallurgy) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Light Industry Machinery is the property of Light Industry Machinery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Fishery Modernization is the property of Fishery Modernization Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Rotordynamic characteristics of a high temperature sodium liquid (HTSL) seal were studied in this paper by using CFD software. Compared with the water liquid seal, the HTSL seal has a larger leakage flow rate and a lower drag power loss. The HTSL seal has a larger direct stiffness coefficient and the effective stiffness coefficient Keff is also larger than the water liquid seal, which means the HTSL seal has a better stiffness capacity. The HTSL seal possesses a positive effective damping coefficient Ceff in the whole whirling frequency range, which means better stability for the rotor system especially in high rotor speeds [ABSTRACT FROM AUTHOR]

Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the frozen sand mold computerized numerical control (CNC)machining process, the effective discharge of sand particles generated by cutting sand blanks is one of the key technologies to ensure the quality of sand molding. In this paper, based on the computational fluid dynamics method, a numerical simulation of the sand discharge mode of the surrounded array jet is carried out to analyze the effects of flow rate, target distance, pitch angle and aperture on the flow field around the cavity. CNC machining orthogonal experiments are designed and the range analysis of sand removal rate is carried out to verify the simulation results. Highspeed jets form stable attachments on the tool face and cavity walls, and the main area for transporting sand particles is the "sand discharge area" formed by the jets on the cavity wall. Both simulation and experimental results show that the optimal sand removal process parameters are flow rate of 30 L/min, target distance of 45 mm, pitch angle of 65° and caliber of 2 mm, in which the effect of flow rate is the most significant, followed by nozzle caliber, pitch angle and target distance. Results can provide guidance for the optimization of sand removal devices and process parameters. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Computational Mechanics / Jisuan Lixue Xuebao is the property of Chinese Journal of Computational Mechanics Editorial Office, Dalian University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of South China University of Technology (Natural Science Edition) is the property of South China University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of CT Theory & Applications is the property of Editorial Department of CT Theory & Applications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To study the influence of buildings layout on the wind environment of residential district, this paper takes a residential district in Zhuhai as the research object. Based on the local climatic characteristics, the PHOENICS software is used to conduct CFD (computational fluid dynamics) simulation of wind environment for two kinds of buildings layout with and without podium buildings. The ventilation conditions and comfort of the two kinds of layout under the background of east, south and northnortheast wind were compared and analyzed, and the results are as follows: 1) When there is no podium building, the wind environment of the residential district under the three wind directions are improved without the obstruction of large-scale buildings, the unevenness of the wind speed is reduced, the size and number of areas with good ventilation conditions and good comfort are increased, the size and number of areas with low wind speed are reduced, and the ventilation corridors are increased. 2) Whether there are podium buildings or not, when the angle between the incoming flow direction and the passage of the building is small, the building's wind blocking and weakening effect is small, and ventilation corridors are more easily formed between buildings with better ventilation conditions. When the angle between the incoming flow direction and the passage of the building is large, the building's blocking effect is significant, the wind speed of the residential district is significantly weakened and it is prone to be uneven, so the ventilation conditions are poor. 3) The wind environment of residential district is jointly affected by buildings layout and wind direction, and the local dominant wind should be taken into account in the planning and design of residential district. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Experimental Technology & Management is the property of Experimental Technology & Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Semi-flexible nozzle is a type of flexible nozzle of transonic wind tunnel, which consists of throat block, flexible plate with variable contour and outlet end plate. The semi-flexible nozzle has the advantages of short length, few supporting mechanisms, low construction cost, high system reliability and low operation and maintenance cost, etc. In view of the advantages of semi-flexible nozzle, semi-flexible nozzle is adopted in 0.6 m continuous transonic wind tunnel and 2.4 m continuous transonic wind tunnel of Aerodynamics Research Institute (ARI) of AVIC. Taking the semi-flexible nozzle of the 0.6 m wind tunnel as an example, this paper introduces the design method of the contour of semi-flexible nozzle of ARI of AVIC in detail. The main contents include the design method of the inviscid nozzle contour with continuous curvature, the calculation method of the displacement thickness of the boundary layer with continuous curvature, the iterative design method of the nozzle contour, the design method of the semi-flexible nozzle, and the design method of contour upstream of the throat block. This paper presents a calibration method of nozzle contour, which adjusts the displacement thickness of the boundary layer according to the results of computational fluid dynamics (CFD) and flow field calibration and effectively improves the accuracy of the Mach number at the outlet of the nozzle. The results of flow field calibration of semi-flexible nozzle show that the Mach number deviation in the rhombus region of the semi-flexible nozzle is small, and the flow field uniformity is good, reaching the advanced level of the national military standard. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Mining & Metallurgy (10057854) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Mine Automation is the property of Industry & Mine Automation Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Shenzhen University Science & Engineering is the property of Editorial Department of Journal of Shenzhen University Science & Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Petrochemical Universities / Shiyou Huagong Gaodeng Xuexiao Xuebao is the property of Journal Editorial Department Of Liaoning Shihua University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Battery is the core power component in electric vehicles, and the battery's thermal management system is an important guarantee for the best performance of the battery. Based on the 21700NCA cylindrical ternary lithium-ion battery, a battery pack system with foamed aluminum as the supporting framework was established in this paper. Phase change materials (PCM) were injected into the pores between the framework and the battery to improve the internal temperature uniformity of the structure. A liquid cooling plate was added to the bottom of the battery to enhance the cooling effect, and the coupled heat dissipation effect of the single battery was analyzed by computational fluid dynamics (CFD) simulation technology. Results showed that, compared with the single cooling mode, the coupling cooling system of metal foam, phase change material and liquid cooling can achieve better cooling effect. For phase change materials, within a certain density range, the higher the density, the better the cooling effect of the battery system. The mixing ratio of PCM mainly affects the solidification and melting rate of PCM. [ABSTRACT FROM AUTHOR]

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In wind tunnel experiments, sensors are normally placed on wing surfaces to measure the aerodynamic load at the corresponding positions. Due to the limited number of the placed sensors, it is difficult to directly obtain the holographic aerodynamic load distribution of the whole wing. In this paper, we use machine learning methods to reconstruct the holographic aerodynamic load on the wing surface from the limited sensor data, and propose a method to optimize the placement of sensors using the simulation data. We select limited position data from the wing holographic aerodynamic data calculated by computational fluid dynamics (CFD) to simulate the sensor experimental data, and compare the reconstruction accuracy of the deep learning model, Gaussian process regression (GPR), support vector regression (SVR) and BP neural network (NN) to the aerodynamic load. The sensor layout is optimized by evaluating the holographic load accuracy reconstructed by the sensor data. The M6 wing is taken as an example to verify the proposed method under two given working conditions. The experimental results show that the GPR model achieves the best accuracy of aerodynamic load reconstruction. The optimal section number and single section number of M6 wing under different total number of sensors, the optimal arrangement under the lowest number of sensors, and the arrangement of sensors in the leading edge area and spanwise section where the flow field changes greatly are all given. [ABSTRACT FROM AUTHOR]

The flotation process is a complex flow field formed by the interaction of multiple phases, which plays a key role in the segregation performance of flotation equipment. With the unceasing development of computational fluid dynamics（CFD） technology and its unique advantages in the fluid flow field, CFD technology has been widely used in the field of flotation and plays an important research tool for understanding flotation mechanisms and developing and optimizing new equipment. The paper introduces the numerical simulation of CFD technology in the flow field of flotation equipment and the flotation process, categorizes and reviews the application and current status of research of CFD in flotation equipment, and at the same time, points out the development direction of CFD technology in flotation. [ABSTRACT FROM AUTHOR]

Copyright of Journal Of Sichuan University (Natural Sciences Division) / Sichuan Daxue Xuebao-Ziran Kexueban is the property of Editorial Department of Journal of Sichuan University Natural Science Edition and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A large amount of rock dust is produced during the drilling, blasting, shoveling, and loading of the metal and non-metal underground mines and causes high dust concentration in the shaft space and endangers the health of,corkers and the working environment. Given that, in this paper, the tunneling roadway of a gold mine is taken as the research object, and the forced ventilation model of the tunneling roadway is established. According to the gas-solid two-phase flow theory combined with the field measurement data, the dust removal effect under different arrangement conditions of the air duct cloth is analyzed by using Fluent software, and the dust migration law and the wind speed distribution in the roadway are obtained. The research finds that the forced airflow of the fan forms a vortex near the lace that carries dust in a vortex around the face which is not conducive to the discharge of dust, and the airflow about 7 —8 m away from the face gradually flows to the return air lane; when the outlet of the air duct is 8 m away from the lace and the height is 1.5 m, the dust in the tunnel is discharged quickly and the dust removal effect is the most ideal. The research results have a certain guiding significance for the prevention and control of dust in the tunneling face. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)