| 一种新的用于任意形状网格的抛物线插值格式 |
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| 引用本文： | 刘华飞,张欣欣,邢改兰. 一种新的用于任意形状网格的抛物线插值格式[J]. 华东理工大学学报(自然科学版), 2006, 32(3): 346-351 |
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| 作者姓名： | 刘华飞 张欣欣 邢改兰 |
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| 作者单位： | 宝钢股份技术中心设备所,上海,201900;北京科技大学机械工程学院,北京,100083;华东理工大学机械与动力工程学院,上海,200237 |
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| 摘 要： | 为了获得既能识别流动方向,又只用到最邻近的点的格式,推导了新的抛物线插值格式,并给出了两个算例来测试新格式在非正交网格上的性能。相比于中心格式(CDS),新的抛物线插值格式精度略高,收敛速度更快,且不易产生振荡。
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| 关 键 词： | 抛物线插值格式 任意形状网格 非正交网格 输运性能 |
| 文章编号： | 1006-3080（2006）03-0346-06 |
| 收稿时间： | 2005-03-02 |
| 修稿时间： | 2005-03-02 |
A New Parabola Interpolation of Convective Fluxes for Arbitrary Meshes |
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| LIU Hua-fei,ZHANG Xin-xin,XING Gai-lan. A New Parabola Interpolation of Convective Fluxes for Arbitrary Meshes[J]. Journal of East China University of Science and Technology, 2006, 32(3): 346-351 |
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| Authors: | LIU Hua-fei ZHANG Xin-xin XING Gai-lan |
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| Abstract: | A new parabola interpolation is constructed to obtain a better differencing scheme suitable for the arbitrary meshes.The new scheme is sensitive to flow direction and needs only the nearest neighbor nodes.Two cases were selected to test its performance on the non-orthogonal grids.Predicting results were compared with the results of other schemes and Peric's benchmark solution.In comparison with CDS,the new parabola interpolation demonstrates slightly more accuracy,faster convergence rate and less oscillation. |
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| Keywords: | parabola interpolation arbitrary meshes non-orthogonal grids transportiveness |
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