Method for Dynamic Response Analysis of Dam to River Flow
Zhan Jiemin(1),Wu ChunLiang(1),Su Wei(1),Zhan Sheng(1),Liu Chang(1),Diao Guoyu(2)
(1 Dept .of Applied Mechanics and Engineering , Zhongshan University, Guangzhou , 510275 ,China)
(2 Guangdong Provincial Waterway Bureau ,Guangzhou,510120)

Abstract: A method for dynamic response of dam to river flow is proposed with FLUENT and ANSYS software. To simulate the water surface, the VOF model is chosen , three cases of different waterfalls are taken to investigate the dynamic loads to the dam. It can be found that even for steady incident flow, the pressure on the damsurface wavy due to the turbulence, the lower frequency pressure tends to steady as the downstream elevationrises. Then the data are input into ANSYS platform as exciting force, and the numerical results of dam modal analysis coincide with the experimental ones very well.
Keywords: simulation of turbulent flow，mode analysis, dynamic analysis of structure.