On the influence of shape and dimensions of particles on the properties of the modified particleincell method
Abstract
Harlow's particleincell method modification which consists in the use of finitesize particles for twodimensional gasdynamics computations is considered. The algorithm for computation of motion of finite size particles is described. It is shown that the use of finite size particles can lead to the local violation of the approximation of original differential equations. However the quantities obtained by averaging the numerical solution over certain spatial subdomains approximate the conservation laws. It is shown that if the characteristic particle dimensions tend to zero, then the modified particleincell method passes to the original Harlow's method. Results of numerical experiments are given to illustrate the properties of the modified particleincell method.
 Publication:

Computers and Fluids
 Pub Date:
 September 1981
 Bibcode:
 1981CF......9..313V
 Keywords:

 Computational Fluid Dynamics;
 Form Factors;
 Gas Dynamics;
 Gas Viscosity;
 Particle In Cell Technique;
 Particle Size Distribution;
 Algorithms;
 Differential Equations;
 EulerLagrange Equation;
 Gas Flow;
 Mesh;
 Shapes;
 Fluid Mechanics and Heat Transfer