Accession Number : ADA132969

Title :   Comparison of TDNOVA Results with an Analytic Solution.

Descriptive Note : Memorandum rept. Oct 80-Sep 81,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Robbins,Frederick W

PDF Url : ADA132969

Report Date : Jul 1983

Pagination or Media Count : 31

Abstract : Presently, two-dimensional, two-phase interior ballistic computer codes are being developed. One such code is TDNOVA. In this report, numerical simulations of TDNOVA are compared to an analytic solution of a one-dimensional problem in order to provide some checks on the accuracy and the cost of running the code. The problem considers the propellant completely burned at time-zero and was solved analytically by Love and Pidduck. The differences between the analytic solution and TDNOVA are on the order of 0.1% for pressure, velocity, distances, and time. The calculations cost as little as $1.00 for a complete solution, requiring 2.27 cp seconds execution time on a CDC 7600 computer system.

Descriptors :   *Interior ballistics, *Gun propellants, *Computer programs, Two phase flow, Guns, Computerized simulation, Lagrangian functions, Digital simulation, Two dimensional

Subject Categories : Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE