The possible time reduction of CFD solutions resulting from grid sequencing

Abstract

Grid sequencing, a technique used to reduce run times of solutions in computational fluid dynamics, was studied. A technique was developed to determine the time at which the solution should be transferred from one grid to another. The technique produced sequences that were either the fastest sequence or very close to the fastest sequence on multiple flow solvers using inviscid calculations. The method by which data is transferred from one grid to another was also tested. It was found that for the inviscid calculations, use of the fourth order interpolator and the linear interpolator produced results with insignificant differences in the same number of iterations.<>