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轎車外流場網(wǎng)格生成策略及數(shù)值模擬
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    摘要:

    采用3種網(wǎng)格策略對某轎車外流場進(jìn)行數(shù)值模擬研究，并應(yīng)用商業(yè)CFD軟件STAR-CD進(jìn)行求解。根據(jù)計(jì)算過程和結(jié)果，分析不同網(wǎng)格策略的效果，論述3種網(wǎng)格策略的特點(diǎn)。數(shù)值模擬中考慮了車輪旋轉(zhuǎn)和車輪固定兩種邊界條件，并將數(shù)值計(jì)算結(jié)果與試驗(yàn)數(shù)據(jù)進(jìn)行了對比分析，探討了高雷諾數(shù)k-ε湍流模型的計(jì)算精度。

    Abstract:

    Three mesh strategies were applied in the numerical simulation research of the external flow field around a sedan. Computational meshes were solved by commercial CFD software, STAR-CD. Mesh strategies effects were compared and their features were summarized according to the different computational processes and results. Both the rotating and stationary wheels boundary conditions were considered and computational results were compared with available experimental data. The accuracy of the high Reynolds k-ε turbulence model was discussed

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楊博,傅立敏.轎車外流場網(wǎng)格生成策略及數(shù)值模擬[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2007,38(4):8-11.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(4):8-11.

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