Cascade kernels for models of the turbulent fluid cascade

Details Cascade kernels for models of the turbulent fluid cascade Cascade kernels for models of the turbulent fluid cascade

2001-12-06

arxiv.org/abs/cond-mat/0112105v1

Physics

Condensed Matter

Soft Condensed Matter

no figures

Scientific paper

This paper presents calculations of the Castaing (Physica D, 46, 177, 1990) cascade kernels for five well-known models of the turbulent cascade and demonstrates that these kernels provide conceptually simple and direct descriptions of turbulence models equivalent to their multifractal spectra. The problem with a log-normal model seems to be that its Castaing kernel predicts a small but non-zero probability that finite-amplitude turbulence will decay to arbitrarily large turbulent amplitudes at smaller scales. Kernels for log-Poisson models do not have this pathology. It is shown how kernels evolve when the cascade model itself varies with scale. Future studies of other kernels compatible with and even dictated by detailed fluid physics may assist understanding of the turbulent cascade.

Affiliated with

Also associated with

No associations

Rating

Cascade kernels for models of the turbulent fluid cascade 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 Cascade kernels for models of the turbulent fluid cascade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cascade kernels for models of the turbulent fluid cascade will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-325823