Number of Results: 1 Search : Smoothed Particle Hydrodynamics

Smoothed Particle Hydrodynamics (SPH)

هیدروتوانیک ِ ذرههای ِ همواریده

hidrotavânik-e zarrehâ-ye hamvâridé

Fr.: hydrodynamique des particules lissées

A numerical method for modeling → compressible
hydrodynamic flows, which
uses particles to simulate a continuous fluid flow. Because the system of hydrodynamical
basic equations can be analytically solved only for few exceptional cases, the SPH
method provides a numerical algorithm to solve systems of coupled
→ partial differential equations
for continuous field quantities. The main advantage of the method is
that it does not require a computational grid to calculate spatial
→ derivatives and that it is a Lagrangian method, which automatically
focuses attention on fluid elements. The equations of motion and
continuity are expressed in terms of ordinary differential equations
where the body forces become classical forces between particles. This
method was first independently developed by Lucy (1977, AJ 82, 1013)
and Gingold & Monaghan (1977, MNRAS 181, 375).

Smoothed Particle Hydrodynamics, first used by Gingold & Monaghan (1977);
→ smooth; → particle;
→ hydrodynamics.