基于离散坐标法的复杂构型跨流域流场模拟  

Simulation for Multi-scale Flows of Complex Model Based on Discrete Ordinates Method

作　　者：王军伟[1] 王魁波 胡开南 白冰 WANG Jun-wei;WANG Kui-bo;HU Kai-nan;BAI Bing(Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China;Institute of Microelectronics of the Chinese Academy of Sciences,Beijing 100094,China;School of Civil and Architectural Engineering,East China University of Technology,Nanchang 330105,China)

机构地区：[1]北京卫星环境工程研究所,北京100094 [2]中国科学院微电子研究所,北京100094 [3]东华理工大学土木及建筑工程学院,江西南昌330105

出　　处：《真空》2023年第5期70-74,共5页Vacuum

摘　　要：跨流域流动不仅存在于高超声速飞行器、航天飞行器变轨/调姿等航空航天领域中,同时也广泛存在于微纳制造及器件传质/传热等科学和工程实践中。准确、快速模拟跨流域流动对此类科学研究和工程实践具有重大意义。本文引入基于气体动理学的多特征值离散坐标法对跨流域流场模拟进行研究,并以动态气体锁为研究对象完成给定构型的内部流场仿真,得到了构型内部温度场、速度场和密度场,所得结果符合理论预期。Multi-scale flows are not only used in hypersonic vehicles,orbit change/attitude adjustment of spacecraft and other aerospace fields,but also the scientific and engineering practices such as the mass transfer/heat transfer in micro/nano manufacturing and device.Accurate and rapid simulation of multi-scale flows is of great significance to this kind of scientific research and engineering practice.The discrete ordinates method based on unified gas kinetic scheme is introduced to study the field simulation of multi-scale flows,and the internal flow field simulation of a dynamic gas lock model is completed.The temperature field,velocity field and density field of the model are obtained,and the results are in line with theoretical expectations.

关 键 词：跨流域 真空 气体动理学 离散坐标法 动态气体锁 

分 类 号：TB711[一般工业技术—真空技术]