FINITE-DIFFERENCE METHODS FOR SIMULATION-MODELS INCORPORATING NONCONSERVATIVE FORCES

We discuss algorithms applicable to the numerical solution of second-o rder ordinary differential equations by finite differences. We make pa rticular reference to the solution of the dissipative particle dynamic s fluid model, and present extensive results comparing one of the algo rithms discussed with the standard method of solution. These results s how the successful modeling of phase separation and surface tension in a,binary immiscible fluid mixture. (C) 1998 American Institute of Phy sics.