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First-order reactant in homogeneous turbulence before the final period of decayA method is described for studying theoretically the concentration fluctuations of a dilute contaminate undergoing a first-order chemical reaction. The method is based on Deissler's (1958) theory for homogeneous turbulence for times before the final period, and it follows the approach used by Loeffler and Deissler (1961) to study temperature fluctuations in homogeneous turbulence. Four-point correlation equations are obtained; it is assumed that terms containing fifth-order correlation are very small in comparison with those containing fourth-order correlations, and can therefore be neglected. A spectrum equation is obtained in a form which can be solved numerically, yielding the decay law for the concentration fluctuations in homogeneous turbulence for the period much before the final period of decay.
Document ID
19750027583
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kumar, P.
(NASA Marshall Space Flight Center Huntsville, Ala.; Indian Institute of Technology, New Delhi, India)
Patel, S. R.
(Indian Institute of Technology New Delhi, India)
Date Acquired
August 8, 2013
Publication Date
July 1, 1974
Publication Information
Publication: Physics of Fluids
Volume: 17
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
75A11655
Distribution Limits
Public
Copyright
Other

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