Applications of the Smoothed Particle Hydrodynamics method
نویسندگان
چکیده
Smoothed Particle Hydrodynamics SPH is a meshless Lagrangian parti cle method for solving a system of hydrodynamic equations for compressible uids SPH is especially suited for problems with free boundaries a commonplace situation in as trophysics Rather than solving the equations on a grid the equations are solved at the positions of the so called particles each representing a mass packet with a certain density velocity temperature etc and moving with the ow The principle of the SPH method is to transform a system of coupled partial di erential equations into a system of coupled ordinary di erential equations which can be solved by a standard integration scheme This is achieved by a convolution of all variables with an appropriate smoothing kernel W and an approximation of the integral by a sum over particle quantities
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