| 粘性流体对流换热问题用直角坐标网格的解法 |
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| 引用本文： | 谢晓俊,康宁.粘性流体对流换热问题用直角坐标网格的解法[J].航空动力学报,2005,20(3):450-455. |
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| 作者姓名： | 谢晓俊 康宁 |
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| 作者单位： | 北京航空航天大学,汽车工程系,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(59976005)，凡舟科研基金资助项目(20021316) |
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| 摘 要： | 研究了非结构化直角坐标网格全贴体求解粘性不可压流体自然对流换热问题。该方法在于利用直角坐标网格但通过在边界附近保留不规则控制体,使得算法是完全贴体的。利用此数值方法对二维倾斜空腔内的自然对流及上固体边界移动时的对流换热问题进行计算,并与STAR-CD的计算结果进行比较。对比结果表明,该方法计算的结果与STAR-CD的结果很接近,可以满足一定精度要求。
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| 关 键 词： | 航空、航天推进系统 自然对流换热 非结构化 直角坐标网格 |
| 文章编号： | 1000-8055(2005)03-0450-06 |
| 收稿时间： | 2005/1/12 0:00:00 |
| 修稿时间： | 2005年1月12日 |
Method with Cartesian Gridfor Simulating Convecti on Heat Transfer of Viscous Fluid |
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| XIE Xiao-jun and KANG Ning.Method with Cartesian Gridfor Simulating Convecti on Heat Transfer of Viscous Fluid[J].Journal of Aerospace Power,2005,20(3):450-455. |
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| Authors: | XIE Xiao-jun and KANG Ning |
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| Institution: | Department of Automotive Engineering,Beijing University of Aeronautics and Astronautics,Beijing100083,China;Department of Automotive Engineering,Beijing University of Aeronautics and Astronautics,Beijing100083,China |
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| Abstract: | A body fitted method with unstructured Cartesian grids for simulating natural convection heat transfer of viscous fluid was studied.Cartesian grids were used and irregular volumes on boundary vicinity were reserved,and thus these grids were fully body fitted.Based on this method,natural convection-diffusion and the convection heat transfer with moving upper boundary in the 2-D inclined cavity were computed.The computed results are compared with those of STAR-CD and show good coincidence. |
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| Keywords: | aerospace propulsion system natural convection-diffusion convection heat transfer unstructured grid Cartesian |
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