Decay of homogeneous turbulence from a given state at higher Reynolds number
Abstract
The turbulence equations are closed by specification of initial conditions (using either a Taylor or an exponential series) and by a modified Kovasznaytype closure. Good results for large times are obtained only for the initialconditions closure used with four or more terms of an exponential series. The evolution of all of the initiallyspecified spectra can be calculated rather well from the theory. From a fundamental standpoint the method thus seems to be satisfactory.
 Publication:

NASA STI/Recon Technical Report A
 Pub Date:
 November 1978
 Bibcode:
 1978STIA...7914952D
 Keywords:

 Closure Law;
 Energy Spectra;
 Homogeneous Turbulence;
 Reynolds Number;
 Spectrum Analysis;
 Decay;
 Exponential Functions;
 Taylor Series;
 Viscosity;
 Fluid Mechanics and Heat Transfer