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Required flux tower height for measurement of re-suspended road dust
- Source :
- Journal of Mechanical Science and Technology. 35:1781-1789
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Concentration of road dust re-suspended by passing vehicles can be measured using fine-dust measuring devices installed at various heights of a flux tower. In this study, simulations were performed to analyze the distribution of dust plumes along the height of a flux tower according to its distance from the center of the road, the vehicle speed, wind direction, and wind speed. Simulation results were compared with field measurements of re-suspended road dust collected by a flux tower during the passage of a van-type mobile laboratory vehicle to confirm the accuracy of the simulation. A parametric study was then conducted using the simulation of the mobile lab vehicle to evaluate the effects of vehicle speed, wind direction, and wind speed. To accurately capture re-suspended road dust concentrations, the flux tower must be at least 4.5, 5.1, 5.8, and 6.2 m high when located 2, 4, 6, and 8 m, respectively, from the road center. The results of this study are expected to serve as guidelines in determining the location and height of flux towers when measuring re-suspended road dust.
- Subjects :
- Road dust
0209 industrial biotechnology
Meteorology
Mechanical Engineering
Flux
Flux tower
02 engineering and technology
Wind direction
Wind speed
020303 mechanical engineering & transports
020901 industrial engineering & automation
0203 mechanical engineering
Mobile laboratory
Mechanics of Materials
Measuring instrument
Environmental science
Subjects
Details
- ISSN :
- 19763824 and 1738494X
- Volume :
- 35
- Database :
- OpenAIRE
- Journal :
- Journal of Mechanical Science and Technology
- Accession number :
- edsair.doi...........aaa160ad8d1e4e324f281125b3db2378