Accession Number : ADA185201

Title :   An Improved Computational Procedure for the Unsteady Doublet Lattice Method,

Corporate Author : AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s) : Waldman, W

PDF Url : ADA185201

Report Date : Aug 1986

Pagination or Media Count : 67

Abstract : A further modification and enhancement of the doublet lattice computational procedure is described. The theoretical basis for the new procedures used to integrate the unsteady Kernel function is covered in detail. A number of cases involving nonplanar and non-parallel lifting surface combinations are studied, and the results are compared with those of other workers. These show generally good agreement, although the predictions of the magnitudes of the forces acting on a tipstore and an underwing store do not compare as favourably.The present method has been implemented into the FORTRAN 77 program called DOULAT.

Descriptors :   *LIFTING SURFACES, *AERODYNAMIC LOADING, UNSTEADY FLOW, COMPUTATIONS, FLUID DYNAMICS, COMPUTER APPLICATIONS, FORTRAN, AUSTRALIA

Subject Categories : Fluid Mechanics
      Aerodynamics
      Guided Missile Dynam, Config & Cntrl Surfaces

Distribution Statement : APPROVED FOR PUBLIC RELEASE