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二维激波与剪切层相互作用的直接数值模拟研究

刘旭亮 张树海

刘旭亮, 张树海. 二维激波与剪切层相互作用的直接数值模拟研究[J]. 力学学报, 2013, 45(1): 61-75. doi: 10.6052/0459-1879-12-106
引用本文: 刘旭亮, 张树海. 二维激波与剪切层相互作用的直接数值模拟研究[J]. 力学学报, 2013, 45(1): 61-75. doi: 10.6052/0459-1879-12-106
Liu Xuliang, Zhang Shuhai. DIRECT NUMERICAL SIMULATION OF THE INTERACTION OF 2D SHOCKWAVE AND SHEAR LAYER[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 61-75. doi: 10.6052/0459-1879-12-106
Citation: Liu Xuliang, Zhang Shuhai. DIRECT NUMERICAL SIMULATION OF THE INTERACTION OF 2D SHOCKWAVE AND SHEAR LAYER[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 61-75. doi: 10.6052/0459-1879-12-106

二维激波与剪切层相互作用的直接数值模拟研究

doi: 10.6052/0459-1879-12-106
基金项目: 国家自然科学基金(11172317, 91016001) 和国家重点基础研究发展计划(973 计划)(2009CB724104) 资助项目.
详细信息
    通讯作者:

    张树海

  • 中图分类号: V211.3

DIRECT NUMERICAL SIMULATION OF THE INTERACTION OF 2D SHOCKWAVE AND SHEAR LAYER

Funds: The project was supported by the National Natural Science Foundation of China (11172317, 91016001) and Major State Basic Research Development Program of China (2009CB724104).
  • 摘要: 采用五阶weighed esseritially non-oscillatory (WENO) 格式和三阶total variation diminishing (TVD) Runge-Kutta 格式, 通过求解二维非定常Navier-Stokes 方程, 直接数值模拟了激波与剪切层相互作用, 目的在于揭示激波与剪切层相互作用过程中噪声产生的机理. 研究发现:(1) 当入射激波穿过剪切层时, 剪切层中心位置向下层区域偏移;(2) 入射激波穿过剪切层产生小激波, 在小激波与剪切层接触点处产生声波并向外辐射;(3) 反射激波穿过剪切层后形成了分段弧状激波;(4) 当反射激波穿过剪切层时, 激波在鞍点处泄漏并向外辐射声波, 这是一种激波泄漏机制.

     

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出版历程
  • 收稿日期:  2012-04-19
  • 修回日期:  2012-10-23
  • 刊出日期:  2013-01-18

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