Accession Number : ADA187649

Title :   A Second Order Godunov Method for Supersonic Tactical Missiles.

Descriptive Note : Summary rept. Oct 83-Dec 86,

Corporate Author : NAVAL SURFACE WEAPONS CENTER SILVER SPRING MD

Personal Author(s) : Wardlaw, A B , Jr ; Davis, S F

PDF Url : ADA187649

Report Date : Dec 1986

Pagination or Media Count : 60

Abstract : A second order Godunov scheme is described for steady supersonic flow. This scheme, which marches the solution in space, in cast in a finite volume formulation and uses a mesh generated by a multiple zone procedure. Second order accuracy is obtained by computing local slopes and adding a predictor step. Both an approximate and a linearized version of the Riemann problem can be used to increase efficiency. The bow shock is fit using the information contained within the Riemann problem. The scheme is applied to both body alone and finned configurations for which experimental data is available. Resonable agreement is obtained between experiment and calculation without the use of artificial viscosity or special procedures.

Descriptors :   *GUIDED MISSILES, *TACTICAL WEAPONS, ACCURACY, BOW SHOCK, EXPERIMENTAL DATA, FINS, FORMULATIONS, PREDICTIONS, SLOPE, STEADY FLOW, SUPERSONIC CHARACTERISTICS, SUPERSONIC FLOW, VISCOSITY, VOLUME, MATHEMATICAL ANALYSIS, MATHEMATICAL PREDICTION

Subject Categories : Guided Missile Dynam, Config & Cntrl Surfaces

Distribution Statement : APPROVED FOR PUBLIC RELEASE