Accession Number : ADA300192

Title :   Multi-Dimensional Simulation of ETC Gun Flowfields.

Descriptive Note : Final rept. Mar 93-Feb 94,

Corporate Author : SCIENCE APPLICATIONS INTERNATIONAL CORP FORT WASHINGTON PA

Personal Author(s) : Hasangadi, A. ; Sinha, N. ; Dash, S. M.

PDF Url : ADA300192

Report Date : AUG 1995

Pagination or Media Count : 150

Abstract : Progress made in the development of advanced computational methodology for simulating multi-dimensional processes in ETC guns is described. The CRAFr upwind/implicit Navier-Stokes code has been extended to include complex multiphase capabilities associated with liquid and solid propellant guns. In particular, a gas/bulk liquid equilibrium formulation for liquid propellants and a nonequilibrium Lagrangian fluidized bed formulation for solid propellants has been incorporated along with plasma generation module coupling. Turbulence is simulated using large eddy simulation (LES) methodology. Fundamental studies as well as simulations of liquid and solid propellant ETC gun firings are described.

Descriptors :   *FLOW FIELDS, *GUNFIRE, COUPLING(INTERACTION), SIMULATION, METHODOLOGY, COMPUTATIONS, LIQUIDS, TURBULENCE, EDDIES(FLUID MECHANICS), MODULAR CONSTRUCTION, PHASE, CODING, COMBUSTION, LIQUID PROPELLANTS, GUNS, NAVIER STOKES EQUATIONS, PLASMA GENERATORS, MULTIPURPOSE, FLUIDIZED BED PROCESSES, SOLID PROPELLANTS, INTERIOR BALLISTICS.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE