摘要
基于匀相流假设,建立了自然空化流动的多相流CFD模型,并在商业软件Fluent的框架下实现。计算了半球头细长回转体的空化流动并与实验测量结果进行了比较,表明该模型能准确预报回转体的空化流动。使用该多相流CFD模型计算并分析了三种典型的空化器—圆盘,圆锥和射流空化器的的空化流动,为进一步研究超空化高速水下航行体或高速射弹空化器参数与空泡参数的关系以及空化器与后体的匹配关系奠定了基础。
Based on homogeneous flow hypothesis, a multi-phase CFD model for natural cavitating flow was built and realized under the frame of general CFD software Fluent. By numerically simulating the cavitating flow over slender body with hemisphere head and comparing with experiment measurement, the model was invalidated and proved to be very accurate. Using this model, three typical cavitator for high-speed supercavitating underwater vehicle were simulated and analyzed, which settled the base for investigating the relationship between cavity shape and cavitator parameters and the match between cavitator and afterbody.
出处
《弹箭与制导学报》
CSCD
北大核心
2005年第1期53-55,59,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国防重点实验室基金(51443070204HK0301)资助
关键词
超空化
航行体
匀相流
自然空化
回转体
计算流体力学
supercavitating
underwater vehicle
homogeneous flow
natural cavitation
axisymmetric body
cavity
