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TECHNICAL PAPERS

Laminar Flow of a Herschel-Bulkley Fluid Over an Axisymmetric Sudden Expansion

[+] Author and Article Information
Khaled J. Hammad, George C. Vradis, M. Volkan Ötügen

  Mechanical, Aerospace and Manufacturing Engineering, Polytechnic University, Six Metrotech Center, Brooklyn, NY 11201

J. Fluids Eng 123(3), 588-594 (Mar 05, 2001) (7 pages) doi:10.1115/1.1378023 History: Received April 01, 1999; Revised March 05, 2001
Copyright © 2001 by ASME
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References

Figures

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Convergence history for Y=0, 1; n=0.6,1
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Schematic of the confined flow geometry and the boundary conditions
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Centerline velocity evolution for two sets of grids
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Inlet velocity profiles for Y=0, .5, 1, 2; n=.6, .8, 1, 1.2
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Effective viscosity contours for Y=1 and (a) Re=50,n=1; (b) Re=100,n=1; (c) Re=100,n=0.6
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Effective viscosity contours for Y=2 and (a) Re=50,n=1; (b) Re=100,n=1; (c) Re=100,n=0.6
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Reattachment length versus yield number at n=0.6, 0.8, 1 and 1.2 for (a) Re=50; (b) Re=100; (c) Re=200
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Reattachment length versus Reynolds number for a Newtonian fluid: a comparison between present computations and available experimental results
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Relative eddy intensity versus yield number at n=0.6, 0.8, 1 and 1.2 for (a) Re=50; (b) Re=100; (c) Re=200
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Centerline velocity evolution at Re=100,n=0.6, 0.8, 1 and 1.2 for (a) Y=0; (b) Y=1; (c) Y=2
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Redevelopment length versus yield number at n=0.6, 0.8, 1 and 1.2 for (a) Re=50; (b) Re=100; (c) Re=200

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