| 凹腔非定常特性的数值模拟 |
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| 引用本文： | 马小亮,杨国伟.凹腔非定常特性的数值模拟[J].计算物理,2010,27(3). |
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| 作者姓名： | 马小亮 杨国伟 |
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| 作者单位： | 中国科学院力学研究所高温气体动力学重点实验室,北京,100190 |
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| 摘 要： | 采用基于Menter SST两方程湍流模型的DES方法,数值模拟开式凹腔在跨声速条件下的非定常流动特性.计算凹腔底部和后壁面上的点的声压级频谱以及总声压级,证明在第二噪声模态上的声压级最大.
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| 关 键 词： | DES 凹腔 声压级 非定常 |
Simulation of Unsteady Cavity Flow |
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| MA Xiaoliang,YANG Guowei.Simulation of Unsteady Cavity Flow[J].Chinese Journal of Computational Physics,2010,27(3). |
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| Authors: | MA Xiaoliang YANG Guowei |
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| Institution: | LHD/a>;Institute of Mechanics/a>;Chinese Academy of Science/a>;Beijing 100190/a>;China |
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| Abstract: | Menter SST based detached eddy simulations (DES) is performed for transonic flow over an open cavity to study unsteady flow and acoustic fields.Sound pressure level (SPL) spectra and overall sound pressure level(OASPL) on surface of the cavity floor and the cavity back wall are computed.It shows that the second mode is dominant with the largest magnitude in SPL. |
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| Keywords: | detached eddy simulations cavity sound pressure level unsteady flow |
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