Ballistic Research Laboratory. Aberdeen Proving Ground, Maryland, 1991, - 53 p.Heating of a gun barrel by repeated firing is modeled in a computer program that solves the one-dimensional (radial) unsteady heat conduction equation by a second-order finite-difference procedure. Coupling with interior ballistics is accomplished by employing as input data the bore temperature and heat transfer histories computed by interior ballistics codes. Limited comparisons of outputs with experimental results show favorable agreement (20% differences or less). The code is exercised to study a number of aspects of the heat transfer process qualitatively (e.g., time history of heat transfer before and after shot exit) and to relate the current model to a more simplified analytical-empirical model.Contents:
Introduction.
Formulation of the problem.
Input data.
Finite-difference calculation.
Accuracy checks.
Computational results.
Relation to analytical-empirical model.
Discussion.
References.
