摘要
为了了解充气空泡对不同头型的空泡特征及对轴对称体阻力特性的影响 ,在高速水洞中试验研究了三种典型头体在不同空泡数下 ,轴对称体上充气空泡的几何特征以及相对应的阻力特性 ,分析了充气数对轴对称体空泡特征与阻力的影响。试验结果表明 ,充气模型的空泡长度、厚度、空泡角随充气量增加而增大 ,从模型头部充气 ,能够产生稳定形状的空泡覆盖模型 ,针对某种特定形状模型 。
An experiment was carried out in a high speed water tunnel to investigate the influence of ventilated cavity on the cavity characters of different headforms and the drag of slender bodies. It investigated the ventilated cavity's geometrical characters and the drag characters of three typical headforms at different ventilated number and analyzed the influence of ventilated number on the cavity's characters and the drag of slender bodies. Experimental results show that the cavity’s length, thickness and angle of the ventilated model increase with the ventilated quantity. The shape of cavity produced by ventilating from the head of model is stable and the cavity can overlay the model. The cavity produced by ventilating can reduce the drag in some special models.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2004年第6期766-769,共4页
Acta Armamentarii
基金
国防科学技术预研基金资助项目 ( 99J14 .5 .1.JB110 6)
国防科技重点实验室预研基金资助项目 ( 0 0JS3 4.1.1.JS110 1)
