Akademik Veri Yönetim Sistemi
JOURNAL OF ENGINEERING MECHANICS, cilt.142, sa.6, 2016 (SCI-Expanded)
A previously developed computational model is used for wave run-up analysis in a generic two-dimensional reservoir subjected to major earthquake acceleration records. The model is based on numerical solution of the Navier-Stokes equations and pressure equation considering compressibility effects. An existing model has been revised by the volume of fluid (VOF) method with piecewise linear interface calculation (PLIC) to be able to compute violent wave motion in the reservoir and to predict the maximum wave run-up on the dam crest attributable to ground oscillations during an earthquake. The numerical method and the computer code are validated by comparing the free-surface waves with the data available in the literature. The surface wave run-up on a vertical dam is simulated for different reservoir depths using major earthquake acceleration records. Simulations show that the maximum wave height on a dam body depends on the maximum positive ground velocity. On the basis of dimensional analysis, simulation results are presented in a simple dimensionless expression that is proposed for the prediction of the maximum wave run-up on a dam face subjected to earthquake excitation. The proposed relationship can be used for estimation of safety freeboard of dams against earthquake-generated surface waves. (C) 2016 American Society of Civil Engineers.