Accession Number : ADA329404

Title :   Analytical Studies of Transient Film-Cooling Effectiveness

Descriptive Note : Rept. for 1 Oct 74-31 Dec 76

Corporate Author : DREXEL UNIV PHILADELPHIA PA DEPT OF MECHANICAL ENGINEERING AND MECHANICS

Personal Author(s) : Tsou, F. K.

PDF Url : ADA329404

Report Date : 27 JAN 1977

Pagination or Media Count : 22

Abstract : An analytical model has been developed for two problems of gun barrel cooling: a. film cooling with wear reducing additives and b. liquid film cooling. The governing equations were derived from an integral method and the solutions of the film-cooling effectiveness were obtained by application of the characteristic method. The results found earlier are: (a) with the additives, the effectiveness is very significant in a region where the erosion is most series and (b) with liquid cooling, the effectiveness is in general high. It is, however, smaller in that region.

Descriptors :   *FILM COOLING, HEAT TRANSFER, GUN BARRELS, BOUNDARY LAYER, INTERIOR BALLISTICS, LIQUID COOLING.

Subject Categories : Thermodynamics
      Guns

Distribution Statement : APPROVED FOR PUBLIC RELEASE