弹簧近似法在二维非结构动网格生成技术中的应用

霍世慧;王富生;岳珠峰

振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 177-182.

PDF(2981 KB)
PDF(2981 KB)
振动与冲击 ›› 2011, Vol. 30 ›› Issue (10) : 177-182.
论文

弹簧近似法在二维非结构动网格生成技术中的应用

  • 霍世慧; 王富生; 岳珠峰
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Spring analogy method for the generating of 2d unstructured dynamic meshes

  • HUO Shi-hui; WANG Fu-sheng; YUE Zhu-feng
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摘要

通过控制网格质量改进弹簧近似法,并将其结果与传统方法进行比较。数值模拟结果显示:基于弹簧近似法的非结构动网格随着模型边界旋转角度的增加网格质量逐渐下降;在发生相同旋转角度时,改进弹簧近似法生成网格的质量较传统方法有了较大的改善;传统弹簧近似法模型边界最大旋转角度为13°左右,改进方法可达到27°,较大地提高了网格的变形能力。最后,运用改进的弹簧近似法对二维翼型进行数值模拟,并与传统方法及实验数据进行比较,得到了较满意的结果,该方法能够较好地运用于实际数值模拟中。

Abstract

Spring Analogy Method (SAM) was improved through introducing the control of mesh quality in the present study. Then its results were compared with these obtained through the traditional SAM. It can be seen from the numerical simulation that mesh quality declined with the increase of rotation angle in the unstructured dynamic meshes based on SAM. The quality of mesh which is generated through improved SAM is better than that generated through the traditional SAM for the same rotation angle. Mesh deformation capability in improved SAM is larger than that in the traditional SAM. It is about 13°in the traditional SAM and 27°in the improved SAM. Finally, numerical simulations on two-dimensional airfoils using LESM were carried out. It is found that the results of improved SAM show a better agreement with experiment results. The improved SAM can be used in the numerical simulation well.

关键词

非结构网格 / 动网格 / 弹簧近似法 / 最大旋转角度 / 网格质量

Key words

unstructured grids / dynamic meshes / spring analogy method / maximum pitching angle / mesh quality

引用本文

导出引用
霍世慧;王富生;岳珠峰. 弹簧近似法在二维非结构动网格生成技术中的应用 [J]. 振动与冲击, 2011, 30(10): 177-182
HUO Shi-hui; WANG Fu-sheng; YUE Zhu-feng. Spring analogy method for the generating of 2d unstructured dynamic meshes[J]. Journal of Vibration and Shock, 2011, 30(10): 177-182

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