Accession Number : ADP005119

Title :   Applications and Developments of Computational Methods for the Aerodynamic Problems of Complex Configurations,

Corporate Author : BRITISH AEROSPACE PLC BROUGH (ENGLAND) FLUID DYNAMICS SECTION

Personal Author(s) : Petrie,J. A. ; Sinclair,P. M.

Report Date : NOV 1986

Pagination or Media Count : 14

Abstract : Problems encountered by the aerodynamicist at a military design site are characterised by complex geometry and complex flow conditions. Because of the limitations of current CFD technology, its use represents a compromise in one or both of these areas. The way in which sensible use of the current generation of CFD codes can generate useful aerodynamic design data is illustrated by three particular examples; wing design, installed store loading and the prediction of store release trajectories. Although these examples will show that data can be generated by such techniques, they are by no means ideal. As an alternative to the methods being widely developed which require a body fitted grid, BAe Brough is developing an integral method which uses a rectangular grid passing through the configuration surface(s). The theory behind this method will be presented together with some results which show the technique to have great promise.

Descriptors :   *BOUNDARY LAYER FLOW, *WING BODY CONFIGURATIONS, *COMPUTATIONS, AERODYNAMIC LOADING, EXTERNAL STORES, EXTERNAL STORE SEPARATION, PROTOTYPES, COMPUTER AIDED DESIGN

Distribution Statement : APPROVED FOR PUBLIC RELEASE