Characteristic time of thermal and diffusional relaxation

It is shown that frequently used dimensional estimate of a layer thermal relaxation time, tr, as L²/k based on the layer thickness, L, and thermal diffusivity, к, strongly overestimates tr. The correct estimate tr=L²/π²k should contain a factor of 1/π² which is of the order of 0.1.

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Bibliographic Details
Date:2015
Main Authors: Aryasova, O.V., Khazan, Ya.M.
Format: Article
Language:Russian
Published: Інститут геофізики ім. С.I. Субботіна НАН України 2015
Series:Геофизический журнал
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Online Access:http://dspace.nbuv.gov.ua/handle/123456789/103741
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Characteristic time of thermal and diffusional relaxation / O.V. Aryasova, Ya.M. Khazan // Геофизический журнал. — 2015. — Т. 37, № 1. — С. 99-104. — Бібліогр.: 3 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine