Assessment of computer modeling accuracy in floodplain hydraulics
Autor: | C. C. Yen, E. Bristow, C. Huxley, D. Souders, C. Biering, B. Espinosa, T.V. Hromadka, N. Jordan, P. Rao, S. Horton |
---|---|
Rok vydání: | 2016 |
Předmět: |
Engineering
Hydraulics business.industry 010102 general mathematics Experimental data Magnitude (mathematics) Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas law.invention Physics::Fluid Dynamics Unsteady flow Flow conditions Hardware and Architecture Mechanics of Materials law Modeling and Simulation 0103 physical sciences Jump 0101 mathematics Electrical and Electronic Engineering business Hydraulic jump Software Simulation |
Zdroj: | International Journal of Modelling and Simulation. 37:88-95 |
ISSN: | 1925-7082 0228-6203 |
DOI: | 10.1080/02286203.2016.1261218 |
Popis: | In this paper, we examine the performance of several popular hydraulic computer models in predicting the magnitude and location of a hydraulic jump. The computer programs considered include the standard HEC-RAS one-dimensional (1-D) models, as well as computational fluid dynamics models. Other computer programs considered include one-, two-, and three-dimensional (2-D and 3-D) models of both the steady and unsteady flow types. The computational model results are compared with experimental data from two different laboratories. It is shown that a few of these commonly used computer models miss the prediction of the hydraulic jump entirely and produce water surface profiles that are not proper estimates. Although the laboratory tests are one-dimensional steady-state scenarios, the failure of some of the multi-dimensional computer models to predict the likely occurrence of the hydraulic jump, or even provide an indication that the flow conditions are favorable for a jump to occur, indicates that care ... |
Databáze: | OpenAIRE |
Externí odkaz: |
Pro tento záznam nejsou dostupné žádné jednotky.