• Corpus ID: 119099477

Quasi-linear Transport in a Sheared Flow Field

  title={Quasi-linear Transport in a Sheared Flow Field},
  author={Kurt S. Riedel},
  journal={arXiv: Plasma Physics},
  • K. Riedel
  • Published 30 March 2018
  • Physics
  • arXiv: Plasma Physics
The evolution of a passive scalar field is considered for a slowly varying stratified medium, which is convected in an incompressible sheared flow with many overlapping static flux islands. Within the quasilinear/random phase approximation, a multiple scale expansion is made. Due to the rapid spatial variation of the temperature, the "ensemble" averaged/ slowly varying part of the solution is not described by the arithmetic average of the oscillatory evolution equation. The standard Markovian… 


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