Accession Number : ADP005130

Title :   Using the Boundary-Layer Equations in Three-Dimensional Viscous Flow Simulation,

Corporate Author : NATIONAL AERONUATICS AND SPACE ADMINISTRATION MOFFETT FIELD CA AMES RESEARCH CENTER

Personal Author(s) : Van Dalsem,William R. ; Steger,Joseph L.

Report Date : NOV 1986

Pagination or Media Count : 12

Abstract : A simple and computationally efficient algorithm for solving the unsteady three dimensional boundary layer equations in a time accurate or relaxation mode is presented. The algorithm is used to compute the separated flow over a 6:1 ellipsoid at angle of attack and the transonic flow over a finite wing with shock induced separation. These results are compared to available experimental data. A method of using the boundary-layer algorithm to accelerate a Navier Stokes computation is also presented. Example computations indicate that a boundary-layer algorithm can be used to improve both the accuracy and efficiency of a Navier Stokes algorithm.

Descriptors :   *WINGS, *SHOCK WAVES, *FLOW SEPARATION, BOUNDARY LAYER FLOW, THREE DIMENSIONAL FLOW, UNSTEADY FLOW, TRANSONIC FLOW, RELAXATION TIME, VISCOUS FLOW, FLOW FIELDS, COMPUTATIONS, ALGORITHMS

Distribution Statement : APPROVED FOR PUBLIC RELEASE