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NUMERICAL-SOLUTION OF A MICROPOLAR FLUID-FLOW BETWEEN 2 ROTATING COAXIAL DISKS

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Title NUMERICAL-SOLUTION OF A MICROPOLAR FLUID-FLOW BETWEEN 2 ROTATING COAXIAL DISKS
 
Creator CHATURANI, P
NARASIMMAN, S
 
Subject stationary disk
swirling flow
computation
steady
multiplicity
 
Description Steady flow of a micropolar fluid between two rotating disks of infinite radius rotating at different/same speeds has been investigated. The lower and upper disks rotate with angular velocities 'OMEGA' and 'S-OMEGA' respectively. By using similarity transformation method, the equations of motion are reduced to a set of ordinary non-linear coupled differential equations. The resulting non-linear equations are linearized by quasilinearization technique and integrated with the help of fourth order Runge-Kutta method via orthonormalization. Effects of micropolarity parameters on velocity components for different values of Reynolds numbers Re (200, 1 000 etc.) and S (-1.0, 0.0, 0.5, 1.0) have been studied. Multiplicity of the solutions have been obtained for different values of S and micropolar parameters at Re = 1 000. It is found that only one of the four micropolar parameters (alpha-1) influences translation velocity components significantly. At high Re, flows similar to flows observed by Batchelor Stewartson and Holodniok etc., have been obtained. A new type of multiple solution has been obtained for S = 1.0 which needs further investigation.
 
Publisher SPRINGER-VERLAG WIEN
 
Date 2011-08-30T13:13:59Z
2011-12-26T12:58:58Z
2011-12-27T05:49:46Z
2011-08-30T13:13:59Z
2011-12-26T12:58:58Z
2011-12-27T05:49:46Z
1991
 
Type Article
 
Identifier ACTA MECHANICA, 89(1-4), 133-145
0001-5970
http://dx.doi.org/10.1007/BF01171251
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12329
http://hdl.handle.net/10054/12329
 
Language en