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Indexed by:期刊论文

Date of Publication:2012-10-01

Journal:EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

Included Journals:SCIE、EI、Scopus

Volume:41

Issue:13

Page Number:1725-1749

ISSN No.:0098-8847

Key Words:dam-reservoir interaction; water compressibility; reservoir boundary absorption; gravity dam; arch dam

Abstract:An efficient procedure is developed for the hydrodynamic analysis of damreservoir systems. The governing equations of hydrodynamic pressure in the frequency as well as time domain are derived in the framework of the scaled boundary finite element method. The water compressibility and absorption of reservoir sediments can be conveniently taken into consideration. By extending the reservoir to infinity with uniform cross-section, only the damreservoir interface needs to be discretized to model the fluid domain, and the hydrodynamic pressure in the stream direction is solved analytically. Several numerical examples including a gravity dam with an inclined upstream face and an arch dam with a reservoir of arbitrary cross-section are provided to demonstrate the computational efficiency and accuracy of the proposed method. Copyright (C) 2012 John Wiley & Sons, Ltd.