Unstructured mesh generation for 3D viscous flow
J. Peraire, K. Morgan · 29th AIAA, Fluid Dynamics Conference · 1998
In this paper we review the procedures which are currently available for the generation of unstructured meshes suitable for use in the simulation of high Reynolds number viscous flows. For such simulations, computational efficiency generally dictates the requirement for the use of highly stretched cells in viscous dominated regions. Meshes of this type cannot be directly generated by the classical unstructured mesh generation procedures and, therefore, special techniques need to be devised to deal with these highly anisotropic grids. In this context, this paper will consider hybrid structured /unstructured meshing procedures and also truly unstructured approaches, including a directional mesh refinement algorithm. 1 Introduction The unstructured mesh approach is now widely accepted as a viable procedure for the simulation of compressible inviscid aerodynamic flows. The procedure allows for the rapid analysis of flows involving complex geometrical configurations and many industrial org...