A MESHLESS METHOD FOR SIMULATION OF HYPERSONIC VISCOUS FLOWS

摘要

This study aims to develop a Meshless (or Gridless) method which can accurately capture strong shock waves in hypersonic viscous flows. Least squares method was used for spatial discretization and AUSMPW+ scheme, a robust and accurate scheme developed to be used for Finite Volume Method(FVM) in hypersonic flows, was modified to be used for Meshless Method. The compressible Reynolds-averaged Navier- Stokes equations with Menter’s two equation model are used to describe turbulent flows. Using the method developed in this study, numerical analyses for hypersonic viscous flows on a flat plate was carried out and the obtained results were compared with those obtained from Structured FVM.