Accession Number:

ADP005118

Title:

Prediction of Wing-Body-Store Aerodynamics Using a Small Perturbation Method and a Grid Embedding Technique,

Descriptive Note:

Corporate Author:

CANADAIR LTD MONTREAL (QUEBEC)

Personal Author(s):

Report Date:

1986-11-01

Pagination or Media Count:

13.0

Abstract:

A computer program providing accurate and cost effective predictions of transonic flow fields about three dimensional configurations has been developed at Canadair. The computation scheme uses the Small Perturbation Equation and a grid embedding technique. The flow field is solved iteratively, using successive line overrelaxation. The comparison between computed results and experiments for a wing body and a generic wing body pylon store configuration show that a good level of accuracy can be obtained with this approach. The program was written with the overall emphasis on lowering the computation time and is considered as a stepping stone towards a full aircraft-store aerodynamic simulation. The potential of the method for analyzing complex three dimensional configuration is discussed, showing that the code is a very practical tool for the design office, for parametric studies or as a lead program for more sophisticated investigations using Euler or Navier Stokes solvers.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE