Cubic turbulence: A model problem
- 1 April 1981
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 24 (4) , 615-628
- https://doi.org/10.1063/1.863428
Abstract
Many of the equations encountered in fluid dynamics and plasma physics are cubically nonlinear. The properties of a relatively simple statistical theory of cubically nonlinear equations, analogous to Kraichnan’s direct interaction approximation for quadratically nonlinear equations, are explored. Its predictions are compared with the numerical solution of a set of equations called the random‐coupling model; good agreement is found.Keywords
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