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.

• 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