Volume 26 Issue 5
May  2000
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LU Li-peng, MIAO Ze-chun, CHEN Mao-zhanget al. Improvement on the Theoretical Model for Dissipation-rate Budgets in Near-wall Region of a Turbulent Boundary Layer[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(5): 523-526. (in Chinese)
Citation: LU Li-peng, MIAO Ze-chun, CHEN Mao-zhanget al. Improvement on the Theoretical Model for Dissipation-rate Budgets in Near-wall Region of a Turbulent Boundary Layer[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(5): 523-526. (in Chinese)

Improvement on the Theoretical Model for Dissipation-rate Budgets in Near-wall Region of a Turbulent Boundary Layer

  • Received Date: 08 Apr 1999
  • Publish Date: 31 May 2000
  • A symmetric resonant-triad theoretical model is proposed for the turbulent coherent structures in near-wall region of a turbulent boundary layer,sothe terms of triple-correlation can be analyzed theoretically. In accordance with the new theoretical model, budgets of the dissipation-rate of turbulent kinetic energy are calculated and its production rate, dissipation and transportation are evaluated. The new theoretical results are in better agreements with DNS than those by simple 3-D symmetric wave model. It shows that the theoretical method proposed could correctly embody the physical mechanism of near wall region turbulence and there is a possibility of opening a new way for near-wall turbulence modeling.

     

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