摘要
采用标准k-ε和RNGk-ε两种湍流模型,以及VOF两相流模型和混合网格划分方法,对履带式两栖车辆车体绕流场进行了数值模拟,得到了带有自由液面的流场分布和兴波特性,模拟计算所得结论与相关试验数据基本吻合。并以此为基础,提出减阻增速的初步设想,为进一步探索履带式两栖车辆的水动力特性提供参考。
Numerical simulation of a crawler-type amphibious vehicle,s round flow field is made by using and RNGturbulence models,two phases VOF model and multi-block hybrid meshes.The distribution,resistance and wave characteristics of round flow field of the vehicle body are computed.The computation results are wel1 consistent with the relevant experimental results.Based on this initial study has been done to optimize the shell of the vehicle and to provide bases for the research on reducing resistance and improving velocity.
出处
《装备制造技术》
2015年第7期9-10,18,共3页
Equipment Manufacturing Technology
关键词
两栖车辆
绕流场
数值模拟
amphibious vehicle
round flow field
numerical simulation
