期刊
ADVANCES IN WATER RESOURCES
卷 29, 期 11, 页码 1598-1607出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advwatres.2005.11.011
关键词
open channel flow; hydrodynamics; Boussinesq equation; non-uniform flow
A numerical experiment is carried out to investigate the suitability' of a Boussinesq-type momentum model for simulating transcritical flows at short length transitions in open channel flow measuring structures. Two one-dimensional Boussinesq-type equation models, which incorporate different degrees of dynamic pressure corrections, are considered for this purpose. A finite difference method is employed to discretise and solve the equations. The models are then applied to simulate different test cases for flows in such channels with predominant non-hydrostatic pressure distribution effects. A comparison of the computed results with the corresponding experimental data is presented. Results of this study reveal that the proposed model, which includes a higher-order correction for the effect of the centrifugal pressure, describes well even relatively abrupt changes from sub- to super-critical flow state. (c) 2005 Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据