The Structure of Pressure Fluctuations in Turbulent Shear Flows
Pressure fluctuations in a turbulent channel and a homogeneous shear flows are investigated by analyzing databases obtained from direct numerical simulations. Detailed statistics associated with the pressure fluctuations in both flows are discussed. Characteristics associated with the rapid (linear) and slow (nonlinear) pressure are examined. The global dependance of the pressure fluctuations and pressure-strain correlations are also examined by evaluating the integral associated with Green’s function representations of them.
KeywordsSource Term Direct Numerical Simulation Turbulent Boundary Layer Pressure Fluctuation Vortical Structure
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