Development of Point Generation Technique for a Meshless Method

Abstract

This study aims to develop meshless point generation technique which can be applied to complicated geometry or moving boundary. Unlike the conventional finite volume method, meshless method requires only point system as a computational domain. Therefore Generation of computational domain is relatively easier than conventional FVM. In this study, meshless point generation technique is developed. For the validation, the results obtained from the meshless method were compared with the results obtained from the conventional FVM. Practical models, such as Space shuttle or Missile, were selected as a validation model. For the steady calculation, governing equation is Euler equation. And for the unsteady calculation, Euler equation in Arbitrary Lagrangian Eulerian form is selected as governing equation Meshless method developed by Huh is used for a flow solver. In both meshless method and FVM, AUSMPW+ was used for numerical flux scheme, minmod limiter was used for limiting process and LU-SGS was used for time integration. From the results, the robustness and the accuracy of meshless point generation technique are verified.