Spring analogy method for the generating of 2d unstructured dynamic meshes

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Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (10) : 177-182.

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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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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.

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

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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