温度体动网格方法的旋转变形能力

doi:10.3969/j.issn.1674-8530.2012.04.014

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Abstract Temperature Analogy Method (TAM) is a new method of generating dynamic grids by using analogy of temperature field. For dynamic grids methods, their rotational deformability depends on the transfer modes of rotational deformation. To investigate the root reasons influencing the rotational deformability of TAM, the transfer modes of rotational deformability were compared among TAM, spring analogy and elasticity approach by using rotating cylinders with different sizes. In doing so, TAM, traditional spring analogy method and its updated version were used to generate the dynamic grids around an airfoil in various rotational angles, respectively. The following results were obtained: First, TAM has a different transfer mode from spring analogy and elasticity approach, i.e. it transfers the rotation of moving boundaries correctly and effectively within the whole computational domain by means of a rotational map. Second, the grid quality of around the airfoil with 90° rotational angle generated by TAM in a single step is better than those around the same airfoil with a smaller than 90° rotational angle generated by the traditional spring analogy method and its updated version in a multiple step. This suggests that TAM is of great advantage in rotational deformability.

Key words： rotation deformability temperature analogy dynamic grids fluidsolid coupling spring analogy elasticity approach

Received: 26 March 2012 Published: 30 July 2012

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	Articles by authors
	Chen-Yan
	ZHANG Qin-Zhao
	CAO Shu-Liang

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Chen-Yan,ZHANG Qin-Zhao,CAO Shu-Liang. Rotational deformability of temperature analogy method[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(4): 447-451.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969/j.issn.1674-8530.2012.04.014 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2012/V30/I4/447

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