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拼接网格通量守恒插值算法研究 预览 被引量:2

RESEARCH ON FLUX CONSERVATION INTERPOLATION ALGORITHM OF PATCHED GRID
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摘要 提出一种通用的拼接网格通量守恒算法应用于拼接网格"找重"过程,为拼接网格预处理提供了高效、可靠的插值方法。该算法灵活利用图形学中"多边形裁剪"原理和曲线积分公式得到拼接面上相交多边形及其面积,算法实现复杂度低,简单并健壮性较好,能够通用于结构网格和非结构网格问题。实验结果表明在大网格量、复杂拼接区域时该拼接网格插值计算方法仍能得到较理想的结果。 This paper mainly discusses a general flux conservation interpolation algorithm for patched grid applying to the "duplicate searching" process of patched grid,which offers an efficient and reliable interpolation approach for patched grid's pre-processing.The algorithm makes use of the "polygon cutting" theory in graphics as well as the curve integral formula flexibly to get the intersected polygon and their areas on patching section,and is easily to implement with low complexity and good robustness,and is suitable for both structured and unstructured grids problems.Experiment results show that even in the case of large grids number with complicated patching area,this patched grid interpolation algorithm can still achieve ideal result.
作者 刘鑫 陆林生 Liu Xin Lu Linsheng(Jiangnan Institute of Computing Technology,Wuxi 214083,Jiangsu,China)
出处 《计算机应用与软件》 CSCD 北大核心 2012年第2期 275-278,共4页 Computer Applications and Software
关键词 拼接网格 CFD计算 插值算法 通量守恒 多边形裁剪 曲线积分 Patched grid CFD Interpolation algorithm Flux conservation Polygon cutting Curve integral
作者简介 刘鑫,博士,主研领域:并行算法及应用。
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