Volume 21 Issue 1
Feb.  2006
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XIAO Kai-tao, LIU Ji-ping, DUO Ying-xian, YUAN Xiang-jiang. Application of High-Order Accurate Scheme in DNS[J]. Journal of Aerospace Power, 2006, 21(1): 1-6.
Citation: XIAO Kai-tao, LIU Ji-ping, DUO Ying-xian, YUAN Xiang-jiang. Application of High-Order Accurate Scheme in DNS[J]. Journal of Aerospace Power, 2006, 21(1): 1-6.
shu

Application of High-Order Accurate Scheme in DNS

  • 1.

    School of Mechatronic Engineering, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    Research Institute of Chemical Defense, Beijing 102205, China

  • 3.

    School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

  • 4.

    National Laboratory of CFD, Beijing 100083, China

  • Received Date: 2005-09-27
  • Rev Recd Date: 2005-11-24
  • Publish Date: 2006-02-28
    Abstract
  • The influence of the different finite difference schemes on the transmission of T-S waves in flat plate boundary layers and free shear flow was studied.The results show that if 2nd order scheme is used,the T-S waves always decay in the flat plate boundary layer.Although the T-S wave grows in the free shear flow,no three dimensional structures appear.If high order scheme is used,the T-S wave grows in the plate boundary layer.The results obtained by DNS agree well with linear stability theory.In the free shear layer,not only the T-S wave grows quickly in the free shear flow,but also three dimensional waves appears evidently and three dimensional structures are excited.

     

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