Unstructured Mesh Generation and Adaptivity

ICASE Report No. 95-26, NASA Langley Research Center, pp.45, April 1995

MESHING
RESEARCH
CORNER

Lecture notes prepared for 26th Computational Fluid Dynamics Lecture Series Program of the von Karman Institute (VKI) for Fluid Dynamics, Rhode-Saint-Genese, Belgium, 13-17 March 1995.

Contract No. NAS1-19480
April 1995

Institute for Computer Applications in Science and Engineering
NASA Langley Research Center
Hampton, VA 2368 1-0001

Abstract
An overview of current unstructured mesh generation and adaptivity techniques is given. Basic building blocks taken from the field of computational geometry are first described. Various practical mesh generation techniques based on these algorithms are then constructed and illustrated with examples. Issues of adaptive meshing and stretched mesh generation for anisotropic problems are treated in subsequent sections. The presentation is organized in an educational manner, for readers familiar with computational fluid dynamics, wishing to learn more about current unstructured mesh techniques.