Publication Date:
2011-08-19
Description:
The direct interaction approximation is used to treat turbulence in a compressible medium with constant mean gradients. The set of coupled nonlinear integrodifferential equations is derived that is satisfied by the transverse and longitudinal energy spectral functions, Q(T) and Q(L) and by the transverse and longitudinal response functions, G(T) and G(L). Finally, expressions for the average of the product of pairs of physically relevant fluctuating quantities (velocity, temperature, density) are derived in terms of Q(T) and Q(L).
Keywords:
FLUID MECHANICS AND HEAT TRANSFER
Type:
Physics of Fluids (ISSN 0031-9171); 31; 1034-105
Format:
text
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