Accession Number : ADA289595

Title :   The Application of Adaptive Mesh Refinement to the Numerical Simulation of Compressible Flow,

Corporate Author : NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH

Personal Author(s) : Shen, Jianxiong ; Huang, Lanjie

PDF Url : ADA289595

Report Date : 17 NOV 1994

Pagination or Media Count : 20

Abstract : This article is based on the adaptive mesh refinement calculation methods developed by M.J.Berger and J.Oliger. It opts for the use of the concept of numerous units formed into a grid, used in solving hyperbolic type equation sets. It combines finite difference forms, opts for the use of Richardson extrapolation techniques to automatically carry out local truncation error estimates, and, for regions with low accuracy, produces new fine mesh local refinements or eliminates old fine mesh refinements which are no longer needed, in order to reach, in the minimum amount of operations, the specified accuracy requirements. Grids are capable of going down into a layer on layer refinement. On the basis of the layered sequence of coverage, each individual grid is a rectangular uniform grid or mesh in any direction desired. This set of algorithms is independent of difference forms used in solutions, is very easy, and combines various types of forms. (AN)

Descriptors :   *COMPUTATIONAL FLUID DYNAMICS, *COMPRESSIBLE FLOW, MATHEMATICAL MODELS, ALGORITHMS, COMPUTERIZED SIMULATION, SHOCK WAVES, GRIDS, NUMERICAL ANALYSIS, ACCURACY, BOUNDARY LAYER, MESH, ESTIMATES, FINITE DIFFERENCE THEORY, FLOW FIELDS, ERROR ANALYSIS, RECTANGULAR BODIES, ADAPTIVE SYSTEMS, TRANSLATIONS, MACH NUMBER, TWO DIMENSIONAL FLOW, VISCOSITY, CHINA, CHINESE LANGUAGE, EXTRAPOLATION.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE