Study on turbulent mixing induced by Richtmyer-Meshkov instability using the second-order moment model
Received:March 04, 2013  Revised:June 15, 2013
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DOI:10.7511/jslx201405012
KeyWord:second-order moment model  Richtmyer-Meshkov instability  turbulent mixing  turbulence production terms
           
AuthorInstitution
杨玟 北京应用物理与计算数学研究所, 北京
王丽丽 北京应用物理与计算数学研究所, 北京 ;北京大学 应用物理与技术研究中心, 北京
周海兵 北京应用物理与计算数学研究所, 北京 ;北京大学 应用物理与技术研究中心, 北京
张树道 北京应用物理与计算数学研究所, 北京 ;北京大学 应用物理与技术研究中心, 北京
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Abstract:
      The second-order moment model was developed in which density fluctuation and turbulence anisotropy were considered and correlations involved turbulence energy production terms were emphasized.The shock tube experiment of Poggi et al.was simulated by this model.The results were compared with detailed experimental data to prove the validation of the model closure,model constants,numerical algorithm and the implementation of the model used in the paper.On the basis of these,the influences of shock Mach number and Atwood number on turbulent mixing were further investigated.