Direct interaction approximation

From Glossary of Meteorology

direct interaction approximation

A turbulence closure scheme proposed by Kraichnan that eliminates the nonlocal direct interaction between large-scale and small-scale turbulence components.

Monin, A. S., and A. M. Yaglom 1975. Statistical Fluid Mechanics. MIT Press, . p. 409.

Kraichnan, R. H. 1959. The structure of isotropic turbulence in high Reynolds numbers. J. Fluid Mech.. 5. 497–542.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.