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Copyright of Ingeniería del Agua is the property of Universidad Politecnica de Valencia 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.)

This work aims to establish the feasibility of installing a small hydroelectric power plant (SHPP) in the Sisga reservoir, given that this body of water has topographical and hydrological characteristics that can turn it into an energy generator without jeopardizing the supply of water resources or the environmental assets in this area. The criteria for meeting this objective were established after conducting cartographic studies that determined the hydraulic jump and the route of the pipe in the project, as well as hydrological studies that allowed us to know the design flow and energy capacity. The selection of hydraulic components was determined based on the results of the previous studies, to finally estimate the impacts on the environmental categories and on the cultural and socio-economic component in the area of influence of the project. From this pre-feasibility study, it was possible to observe how a SHPP in the Sisga reservoir could be installed optimally and efficiently without incurring in high installation or operational costs, highlighting the benefits of a SHPP and the low negative environmental impacts of this project. [ABSTRACT FROM AUTHOR]

Copyright of Gestión y Ambiente is the property of Universidad Nacional de Colombia 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.)

The present article is the sixth of a series of seven, all relatives to the energy dissipators that can be used in hydraulic works. The whole group of these articles conform a monograph about the subject that is being prepared by the author, concluding it by the middle of the 2017 year and later on incorporating it into a new edition - in preparation - of the textbook "Spillways and Intake Structures". This sixth article is a detailed presentation about the baffled apron employed with an energy dissipation function and of the riprap frequently placed at the exit (discharge) of the energy disipators. [ABSTRACT FROM AUTHOR]

The present article is the second of a series of seven, all relative to energy dissipators that can be used in hydraulic works. The whole group of these articles conform a monograph about the subject that is being prepared by the author, concluding it by the middle of the 2017 year and later on incorporating it into a new edition - in preparation - of the textbook "Spillways and Intake Structures." This second article is a detailed presentation about two structures of energy dissipation that have a wide universal use. [ABSTRACT FROM AUTHOR]

The present article is the first of a series of seven, all relatives to energy dissipators that can be used in hydraulic works. The whole group of these articles conform a monograph about the subject that is being prepared by the author, concluding it by the middle of the 2017 year and later on incorporating it into a new edition - in preparation - of the textbook "Spillways and Intake Structures." This first article is a detailed presentation about the hydraulic jump employed with the function of energy dissipation. [ABSTRACT FROM AUTHOR]

The hydraulic jump in circular conduits has not been studied in depth. Some reports even consider that theroretical values of its parameters are not in agreement with the few experimental data available. Theoretical treatment of the problem is hereby presented with calculation expressions and graphics for its solution. Validity of the results is shown provided that all involved coefficients are correctly fundamented. To this end reported test results in the literature are re-elaborated. Comparison between proposed approximate formulas to calculate jump length and an empirical dependence existing within hydraulic properties of these conduits, shows the need to apply the latter in order to obtain reliable results. The paper also calculates the hydraulic jump efficiency in consumption of the excess energy in these conduits. [ABSTRACT FROM AUTHOR]

In this work, is carried out a hydrodynamic study of the operation of the experimental channel of the Center of Hydraulics Research (CIH), taking into account the occurrence of certain local phenomena (hydraulics fall and hydraulic jump). Special attention is paid to the flow resistance of the conduction, being valued the results of precedent investigations. The authors introduce a law of specific resistance for all the length of the channel and validate a model of non stationary flow in this installation, which is based on the equations of Saint Venant, which are resolved with the method of the finite elements, according to the strategy of Szymkiewicz. [ABSTRACT FROM AUTHOR]

The objective of this article is to apply the momentum principle in open channels flow as an independent methodology from other physical principles. It remedies a fault of the technical literature by the additional interpretation of hydraulics phenomena that normally are studied with the energy conservation principle. It concludes about the flow depth faced with several flow conditions or flow variations or hydraulics controls. This paper shows the momentum equation applied to the interpretation of the flow depth in several openchannel flow situations: uniform, gradually varied, and some local phenomena as transitions and hydraulic jump. Hydraulic jump equations are obtained for several cross sections in terms of the initial and sequent depth of flow. [ABSTRACT FROM AUTHOR]