Analytical Studies of Transient Film-Cooling Effectiveness
Rept. for 1 Oct 74-31 Dec 76
DREXEL UNIV PHILADELPHIA PA DEPT OF MECHANICAL ENGINEERING AND MECHANICS
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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.