MIXING LAYER BETWEEN TURBULENT FIELDS OF DIFFERENT SCALES.

S. B. Pope, D. C. Haworth

Research output: Contribution to conferencePaperpeer-review

Abstract

A modelling study is reported of the interaction and mixing between two semi-infinite homogeneous turbulent flow fields of different scales. This turbulence mixing layer, in which there are no mean velocity gradients, is ideal for studying turbulent energy transport. The velocity joint pdf equation is closed by using the Langevin model and is solved by a Monte Carlo method. A novel - and essential - component in the present model is a Lagrangian equation for the dissipation. The model calculations are compared to the experimental data of Veeravalli and Warhaft. There is good agreement between the calculated and measured velocity skewness and excesses, which are the most revealing statistics.

Original languageEnglish (US)
Pages15. 19-15. 24
StatePublished - 1985

All Science Journal Classification (ASJC) codes

  • General Engineering

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