摘要
本文介绍了用底排冷空气方法减少弹丸底部阻力的风洞实验研究情况,描述了马赫数、排气孔几何参数对底压、底阻的影响以及底压、底阻和剪切角随排气率的变化规律。给出了它们的实验结果,并进行了初步分析。
This article is about the investigation of wind tunnel test in reducing projectile base drag with base bleed cold air.It discusses the effects of Mach number and the geometric parameters of base bleed opening on base drag and base pressure as well as the changes of them and shear angle with bleed rate. The experimental results and some simple analyses are presented.
出处
《空气动力学学报》
CSCD
北大核心
1989年第1期81-87,共7页
Acta Aerodynamica Sinica
关键词
底排
风洞实验
底阻
弹丸
base bleed
wind tunnel test
base drag
