NUMERICAL-SIMULATION OF HYDRAULIC JUMP

被引：37

作者：

CHIPPADA, S ^{[1
]}

RAMASWAMY, B ^{[1
]}

WHEELER, MF ^{[1
]}

机构：

[1] RICE UNIV,DEPT COMPUTAT & APPL MATH,HOUSTON,TX 77251

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 1994年 / 37卷 / 08期

关键词：

D O I：

10.1002/nme.1620370807

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydraulic jump on a straight horizontal channel with supercritical Froude numbers 2-0 and 4.0 is numerically simulated by solving the Reynolds averaged Navier-Stokes equations. Turbulence is modelled through the k-epsilon closure equations and the mixed Eulerian-Lagrangian description of flow is utilized to overcome the problem posed by moving free boundary. Time stepping is done via fractional step method and pressure is determined from Poisson's equation. Galerkin finite element method with three-noded triangular elements is used for spatial discretization. A detailed study of the internal and external characteristics of hydraulic jump is done and compared with experimental values where possible. Surface roller and recirculation wne are found to play a dominant role in turbulence generation and dissipation.

引用

页码：1381 / 1397

页数：17

共 27 条

[1] 2-EQUATION TURBULENCE MODEL FOR FLOW IN TRENCHES [J].