Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models

The performance of two popular hydraulic models (HEC-RAS and WSPG) for modeling hydraulic jump in an open channel is investigated. The numerical solutions are compared with a new experimental data set obtained for varying channel bottom slopes and flow rates. Both the models satisfactorily predict t...

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Detalles Bibliográficos
Autores principales: Rao, Prasada, Hromadka, Theodore V.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Technical Note
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4899399/
https://www.ncbi.nlm.nih.gov/pubmed/27350903
http://dx.doi.org/10.1186/s40064-016-2199-0
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author Rao, Prasada
Hromadka, Theodore V.
author_facet Rao, Prasada
Hromadka, Theodore V.
author_sort Rao, Prasada
collection PubMed
description The performance of two popular hydraulic models (HEC-RAS and WSPG) for modeling hydraulic jump in an open channel is investigated. The numerical solutions are compared with a new experimental data set obtained for varying channel bottom slopes and flow rates. Both the models satisfactorily predict the flow depths and location of the jump. The end results indicate that the numerical models output is sensitive to the value of chosen roughness coefficient. For this application, WSPG model is easier to implement with few input variables.
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spelling pubmed-48993992016-06-27 Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models Rao, Prasada Hromadka, Theodore V. Springerplus Technical Note The performance of two popular hydraulic models (HEC-RAS and WSPG) for modeling hydraulic jump in an open channel is investigated. The numerical solutions are compared with a new experimental data set obtained for varying channel bottom slopes and flow rates. Both the models satisfactorily predict the flow depths and location of the jump. The end results indicate that the numerical models output is sensitive to the value of chosen roughness coefficient. For this application, WSPG model is easier to implement with few input variables. Springer International Publishing 2016-05-20 /pmc/articles/PMC4899399/ /pubmed/27350903 http://dx.doi.org/10.1186/s40064-016-2199-0 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Technical Note
Rao, Prasada
Hromadka, Theodore V.
Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title_full Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title_fullStr Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title_full_unstemmed Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title_short Numerical modeling of rapidly varying flows using HEC-RAS and WSPG models
title_sort numerical modeling of rapidly varying flows using hec-ras and wspg models
topic Technical Note
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4899399/
https://www.ncbi.nlm.nih.gov/pubmed/27350903
http://dx.doi.org/10.1186/s40064-016-2199-0
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