抄録
In this paper a smoothed particle hydrodynamics (SPH) numerical model for 1-D shallow water equations is presented for evaluating effectiveness of various SPH modification techniques and their combinations: artificial viscosity, symmetrization and correction methods of consistency condition error. Though it is known that the original SPH method has serious instability problem and poor accuracy without those techniques, there are quite few studies about quantitative error and effectiveness analysis of those techniques. We evaluate them through numerical examples of wave propagation. The result shows that at least the combination of artificial viscosity and a consistency correction method is required for the accuracy equivalent to the finite difference method.
