Water hammer with fluid-structure interaction in thick-walled pipes

被引：129
|
作者：
Tijsseling, A. S. [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Math & Comp Sci, NL-5600 MB Eindhoven, Netherlands
来源：
COMPUTERS & STRUCTURES | 2007年 / 85卷 / 11-14期
关键词：
water hammer; fluid transients; fluid-structure interaction (FSI); pipe flow; pipe vibration; wave speed;
D O I：
10.1016/j.compstruc.2007.01.008
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A one-dimensional mathematical model is presented which describes the acoustic behaviour of thick-walled liquid-filled pipes. The model is based on conventional water-hammer and beam theories. Fluid-structure interaction (FSI) is taken into account. The equations governing straight pipes are derived by the cross-sectional integration of axisymmetric two-dimensional basic equations. The resulting FSI four-equation model has small correction terms and factors accounting for the wall thickness. Exact solutions of this model show that these corrections are important only for very thick pipes, with, say, a radius/thickness ratio smaller than 2. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：844 / 851
页数：8
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