Volume 24 Issue 6
Jun.  1998
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Lu Lipeng, Chen Maozhang. Theoretical Model for Dissipation-Rate Budgets in Near-WallRegion of a Turbulent Boundary Layer[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(6): 680-683. (in Chinese)
Citation: Lu Lipeng, Chen Maozhang. Theoretical Model for Dissipation-Rate Budgets in Near-WallRegion of a Turbulent Boundary Layer[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(6): 680-683. (in Chinese)

Theoretical Model for Dissipation-Rate Budgets in Near-WallRegion of a Turbulent Boundary Layer

  • Received Date: 26 Jun 1998
  • Publish Date: 30 Jun 1998
  • Based on the linear hydrodynamic stability theory, a 3-D theoretical model is proposed for the turbulent fluctuations in near-wall region of a turbulent boundary layer. In accordance with the theoretical model, budgets of the the dissipation-rate of turbulent kinetic energy are calculated and its production rate, dissipation and transport are evaluated. Good agreements between the theoretical results and those of DNS are obtained.Especially in the region of y<10 ,the theoretical model is obviously superior to some coventional ones in predicting ability. It is not only beneficial to understanding the physics of turbulence but also, probably, opening a new way for developing turbulence modeling.

     

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