Egea, M.L. (2015) Experimental and Numerical Modelling of Submerged Hydraulic Jumps at Low-Head Dams. Master of Applied Science in Civil Engineering (Water Resources), Department of Civil Engineering Faculty of Engineering, University of Ottawa, Ottawa.

has been cited by the following article:

• TITLE: Examination of Computational Precision versus Modeling Complexity for Open Channel Flow with Hydraulic Jump

  AUTHORS: Theodore V. Hromadka II, Prasada Rao

  KEYWORDS: OpenFOAM, HEC-RAS, WSPG, Rapidly Varying Flows

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.11 No.10, October 9, 2019

  ABSTRACT: In this work, for flow with a hydraulic jump, the predictive capabilities of popular hydraulic models (HEC-RAS and WSPG) are validated with the published results from the three dimensional Computational Fluid Dynamics (CFD) model (OpenFOAM). The analysis is performed for flows with a Froude number of 6.125 and Reynolds number of 3.54 × 105. While the hydraulic models solve the one-dimensional energy equation, in the CFD model solution of the three dimensional Reynolds averaged Navier-Stokes (RANS) equations, with a turbulence model, is used. As the results indicate, although the hydraulic models can satisfactorily predict the location of the steady-state jump, the length of the hydraulic jump (i.e. distance from the toe of the jump to a location in tail water zone) and other jump characteristics are better simulated by the CFD model. The solution from hydraulic models is sensitive to the channel bottom roughness value.