Abstract
A solution procedure is proposed for determining the hydrodynamic pressure on a dam with an infinite reservoir in the upstream direction. The boundary element method with particular integrals, which adopts a frequency-independent fundamental solution, is used in the analysis involving the effect of the water compressibility. One of the major difficulties in infinite reservoir analysis is the assessment of the effect of radiation damping. This difficulty is solved in this paper by modeling the near field and the cross-section of the far field of the fluid domain by the boundary element method with particular integrals and the finite element method, respectively. The upstream direction of the far field is represented by a continuum solution. Numerical results in the three-dimensional fluid domain are obtained and compare well with available analytical solutions. Calculated results are also compared with available numerical solutions where analytical solutions do not exist. It is concluded that the proposed method yields solutions on hydrodynamic pressures with very good computational efficiency.
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