底排弹后体阻力的优化设计

OPIMIZATION DESIGN FOR BASE DRAG OF BASE BLEED PROJECTILE

使用优化设计方法,正确地选择船尾长度、船尾角以及底排装置的各种参数,使其后体阻力最小,达到最佳减阻效果,求得这些参数的优化结果.

Base bleed is an important technique commonly used to increase the range of long-distance projectile.The base configuration of projectile and base bleed parametres are the key factors which affect the reduction of drag.To minimize the base drag and obtain optimized result of drag,it is important to select correctly the stern length,stern angle and base bleed parametres.By use of optimization method,optimized results of these parametres are proposed in this paper.