Volume 32 Issue 01
Jan.  2006
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Chen Xuanyou, Dong Haitao, Lee Chunhian, et al. Three-point step-by-step generating r-type adaptive grid technique[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(01): 13-17. (in Chinese)
Citation: Chen Xuanyou, Dong Haitao, Lee Chunhian, et al. Three-point step-by-step generating r-type adaptive grid technique[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(01): 13-17. (in Chinese)

Three-point step-by-step generating r-type adaptive grid technique

  • Received Date: 12 Nov 2004
  • Publish Date: 31 Jan 2006
  • In order to distribute grids correctly according to certain flow parameter grads but not to increase grid number, a step-by-step generating technique for r-type three points adaptive grid was proposed based on an averaged total variation concept. By this method, the grid location could be gradually adjusted, and the adaptive grid quality could be improved and grid thread distortion could be decreased. Two test cases were given to demonstrate the effectiveness of the developed procedure, namely, the supersonic flows over a two dimensions circular cylinder and a three dimensions double ellipsoid using an Euler solver. Grid location in the two test cases was adjusted by total variation of pressure. By comparing with the results computed using original grids, it is observed that shock wave captured by adaptive grids becomes thinner, so the results obtained by the present technique do provide higher resolution.

     

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