| 时间模式下二维可压缩气固两相混合层流动研究 |
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| 引用本文： | 万国新,刘伟.时间模式下二维可压缩气固两相混合层流动研究[J].空气动力学学报,2007,25(3):294-299. |
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| 作者姓名： | 万国新 刘伟 |
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| 作者单位： | 国防科技大学航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 973国家重大基础研究资助项目(5132403010103) |
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| 摘 要： | 采用Euler-Lagrange颗粒-轨道双向耦合模型对时间模式下含有固粒的二维可压缩混合层流场进行了研究。气相流场采用具有空间三阶精度的WNND格式进行直接数值模拟,固相方程采用单边三点差分离散。在考虑流场对固粒作用的同时,也计及固粒对流场的反作用。在对流马赫数为0.5时,研究了颗粒相对密度、颗粒尺寸以及Stokes数等对粒子运动和流场结构的影响。
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| 关 键 词： | 可压缩流动 气固两相流 混合层流动 数值模拟 |
| 文章编号： | 0258-1825（2007）03-0294-06 |
| 修稿时间： | 2006-01-10 |
Study on the flow of two-dimensional temporally developing compressible gas-solid mixing layer |
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| WAN Guo-xin,LIU Wei.Study on the flow of two-dimensional temporally developing compressible gas-solid mixing layer[J].Acta Aerodynamica Sinica,2007,25(3):294-299. |
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| Authors: | WAN Guo-xin LIU Wei |
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| Institution: | College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | A two-dimensional compressible temporally developing mixing layer flow field with particles is studied by using Euler-Lagrange two-way coupling model.The gas-field is solved by direct numerical simulation method with the WNND scheme which is three-order accuracy in space,and the equations of particles are discretized by biased three-point difference.Not only gas-field's influence on particles but also the reaction of particles to gas-field is considered.At the convective Mach number 0.5,the influence of different relative density of particles,size of particles and Stokes number on particle's dispersion and gas-field structure is investigated. |
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| Keywords: | compressible flow gas-solid two-phase flow mixing layer flow numerical simulation |
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