A renormalized expression for the turbulent energy dissipation rate

Details A renormalized expression for the turbulent energy dissipation rate A renormalized expression for the turbulent energy dissipation rate

2000-12-13

arxiv.org/abs/cond-mat/0012227v1

Physics

Condensed Matter

12 pages RevTeX, 2 figures. Accepted for PRE rapid communications, to appear Jan 1 2001

Scientific paper

10.1103/PhysRevE.63.015304

Conditional elimination of degrees of freedom is shown to lead to an exact expression for the rate of turbulent energy dissipation in terms of a renormalized viscosity and a correction. The correction is neglected on the basis of a previous hypothesis [W.D. McComb and C. Johnston, J.Phys.A v33 L15 (2000)] that there is a range of parameters for which a quasi-stochastic estimate is a good approximation to the exact conditional average. This hypothesis was tested by a perturbative calculation to second order in the local Reynolds number, and the Kolmogorov prefactor (taken as a measure of the renormalized dissipation rate) was found to reach a fixed point which was insensitive to initial values of the kinematic viscosity and to values of the spatial rescaling factor h in the range 0.4 <= h <= 0.8.

Affiliated with

Also associated with

No associations

Rating

A renormalized expression for the turbulent energy dissipation rate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A renormalized expression for the turbulent energy dissipation rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A renormalized expression for the turbulent energy dissipation rate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-652444