| 支板喷射超声速燃烧流场三维大涡模拟 |
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| 引用本文： | 范周琴,孙明波,刘卫东.支板喷射超声速燃烧流场三维大涡模拟[J].国防科技大学学报,2011,33(1):1-6. |
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| 作者姓名： | 范周琴 孙明波 刘卫东 |
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| 作者单位： | 国防科技大学航天与材料工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(50906098); 高等学校博士点新教师专项科研基金项目(20094307120005) |
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| 摘 要： | 利用火焰面模型和混合LES/RANS方法对某支板构型超燃冲压发动机进行模拟,讨论了化学反应对湍流流场的影响,并比较了3D和2D模拟的差别.结果表明,不考虑化学反应时剪切层中的大尺度结构控制着整个混合过程,且剪切层具有明显的三维特性;2D模拟能捕捉到涡的配对与合并现象,而3D模拟中涡的拉伸、扭曲及破碎特性更加显著;考虑化...
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| 关 键 词： | 大涡模拟 超声速湍流燃烧 火焰面模式 |
| 收稿时间： | 2010/7/30 0:00:00 |
Three Dimensional Large Eddy Simulation of Supersonic Combustion Flowfield with Strut |
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| FAN Zhouqin,SUN Mingbo and LIU Weidong.Three Dimensional Large Eddy Simulation of Supersonic Combustion Flowfield with Strut[J].Journal of National University of Defense Technology,2011,33(1):1-6. |
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| Authors: | FAN Zhouqin SUN Mingbo and LIU Weidong |
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| Institution: | FAN Zhou-qin,SUN Ming-bo,LIU Wei-dong(College of Aerospace and Material Engineering,National Univ.of Defense Technology,Changsha 410073,China) |
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| Abstract: | Flamelet model and hybrid LES/RANS method were used to simulate SCRAMJET with strut for the Chemical Propulsion of the German Aerospace Center(DLR).The effect of reaction on turbulence was discussed,and comparison between 2D and 3D simulation were presented.The results show the following indication:(1) Mixing is controlled by large eddy scales in nonreacting flow, and the shear layer has three effects obviously;In addition,the combination and pairing of large eddy scales can be seen in 2D simulation,while s... |
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| Keywords: | large eddy simulation supersonic turbulent combustion flamelet model |
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