| 粘性非结构网格生成方法及绕流计算 |
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| 引用本文： | 成娟,黄明恪.粘性非结构网格生成方法及绕流计算[J].南京航空航天大学学报,2000,32(2):184-188. |
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| 作者姓名： | 成娟 黄明恪 |
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| 作者单位： | 南京航空航天大学空气动力学系,南京,210016 |
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| 基金项目： | 航空科学基金 !(编号 :96 A5 2 0 0 1)资助项目 |
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| 摘 要： | 运用非结构网格进行计算时，需要在物体附面层区域内生成高展弦比的三角形网格。本文给出了一种基于物理学中弹簧原理的粘性非结构网格生成新方法－－挤压法，它能有效地实现粘性区域内位伸网格到附面层外一般非拉伸网格的光滑过渡。然后在非结构粘性网格上对Ｎ－Ｓ方程运用有限体积法进行了数值计算，ＮＡＣＡ－００１２翼型以及平板层流的数值试验结果较为满意。
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| 关 键 词： | 粘性流动 非结构网格 网格生成方法 绕流计算 |
Viscous Unstructured Grid Generation and Laminar Flow Calculation |
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| Cheng Juan,Huang Mingke.Viscous Unstructured Grid Generation and Laminar Flow Calculation[J].Journal of Nanjing University of Aeronautics & Astronautics,2000,32(2):184-188. |
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| Authors: | Cheng Juan Huang Mingke |
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| Abstract: | Viscous calculations on unstructured meshes need high aspect ratio cells in boundary layers. Based on spring principle, a new method of generating viscous unstructured triangular grids is proposed, which ensures a smooth transition from a viscous highly stretched grid to an inviscid regular grid. Then, Navier Stokes flow solver is developed on unstructured viscous meshes by using finite volume method. Numerical results of NACA 0012 foil and flat laminar flow are relatively satisfied. |
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| Keywords: | viscous flow numerical computation unstructured grids spring principle finite volume method |
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