Accession Number : ADA288298

Title :   A Non-Iterative Grid Deformation Algorithm for Computational Fluid Dynamics for Aeroelasticity.

Descriptive Note : Interim rept. Jun-Jul 94,

Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Synder, Richard D.

PDF Url : ADA288298

Report Date : SEP 1994

Pagination or Media Count : 25

Abstract : This Technical Memorandum presents an algorithm for deforming a two- or three-dimensional aerodynamic grid given deflections on a physical boundary. This algorithm is to be used in coupling a computational fluid dynamics code with a computational structural mechanics code. The deformation algorithm was tested successfully on both two- and three-dimensional grids. The method sufficiently maintalns grid quality for smooth deflections of realistic orders of magnitude. The method is computationally efficient: the time required to deform the grid is small compared to the time required to solve the fluid dynamics.

Descriptors :   *DEFORMATION, *COMPUTATIONAL FLUID DYNAMICS, *AEROELASTICITY, AERODYNAMIC CONFIGURATIONS, ALGORITHMS, COMPUTATIONS, TWO DIMENSIONAL, STRUCTURAL MECHANICS, COMPUTER PROGRAMMING, DEFLECTION, PROBLEM SOLVING, BOUNDARIES, CODING, GRIDS(COORDINATES), THREE DIMENSIONAL, SWEPT WINGS, NONLINEAR DIFFERENTIAL EQUATIONS, TRANSFORMATIONS(MATHEMATICS), FORTRAN, FINITE DIFFERENCE THEORY.

Subject Categories : Fluid Mechanics
      Mechanics
      Aerodynamics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE