实验流体力学2017，Vol.31Issue(1)：73-79,7.DOI:10.11729/syltlx20160094
NPLS流场测量技术在高超声速风洞中纳米粒子跟随性数值仿真
Numerical simulation of nano-particle following features for NPLS measurement technology used in hypersonic wind tunnel
摘要
Abstract
A numerical simulation approach is presented to simulate the rarefied two phase flow by applying two-way coupling technique in DSMC method.The interaction between the rar-efied gas and solid particles is dealt with in a decoupled way to compute the momentum and ener-gy exchange between phases.A numerical study of nano-particle following features for NPLS measurement technique used in the hypersonic wind tunnel is carried out by employing the DSMC method suited to simulate the rarefied two phase flow.The 50nm TiO2 particles in various rare-faction two phase flow cases are simulated.The results show that nano-particle following fea-tures are satisfactory in the low rarefaction flow.As the degree of the flow rarefaction rises,the following features decrease deteriorate the difference between particle and gas distributions in-crease,and therefore the flow structure can’t be obtained from NPLS correctly.关键词
DSMC方法/两相流/双向耦合/NPLS/高超声速/流场测量Key words
DSMC method/two phase flow/two-way coupled method/NPLS/hypersonic/flow measurement分类
数理科学引用本文复制引用
李中华,李志辉,蒋新宇,吴俊林..NPLS流场测量技术在高超声速风洞中纳米粒子跟随性数值仿真[J].实验流体力学,2017,31(1):73-79,7.基金项目
国家自然科学基金项目(11325212) （11325212）
国家重点基础研究发展计划(2014CB744100) （2014CB744100）
