Title: The direct numerical simulation of a turbulent channel flow with analyses of the database
Abstract: The database of fully developed turbulent channel flow at low Reynolds number is set up through direct numerical simulations. The budget of dissipation-rate of turbulent kinetic energy is calculated and some existing models for the transport equation of the dissipation rate are evaluated. A new model for the turbulent production and viscous destruction terms is given. It makes a considerable improvement in the near-wall behavior. A new flow structure contributing much to high kurtosis levels in transverse velocity fluctuation in viscous sublayer is found. The common characters they possessed are described.
Publication Year: 1996
Publication Date: 1996-04-01
Language: en
Type: article
Indexed In: ['crossref']
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