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TECHNICAL PAPERS

Numerical Procedure for the Laminar Developed Flow in a Helical Square Duct

[+] Author and Article Information
V. D. Sakalis, P. M. Hatzikonstantinou, P. K. Papadopoulos

Department of Engineering Science, University of Patras, GR 26500 Patras, Greece

J. Fluids Eng 127(1), 136-148 (Mar 22, 2005) (13 pages) doi:10.1115/1.1852483 History: Received August 08, 2003; Revised October 14, 2004; Online March 22, 2005
Copyright © 2005 by ASME
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Figures

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(a) Helical duct. (b) Coordinate system.
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Effect of the grid on the axial velocity u1/Uav along the x (y=0) axes, when κ=0.25, τ=0.1, and De=214
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Profiles of u1/Uav along the x (y=0) axes when κ=0.01, τ=0.01, and De=59, 142, 243
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Profiles of u1/Uav along the x (y=0) axes when κ=0.01, τ=0.1, and De=79, 158
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Profiles of u1/Uav along the y (x=0) axes when κ=0.01, τ=0.01, and De=59, 142, 243
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Profiles of u1/Uav along the y (x=0) axes when κ=0.01, τ=0.1, and De=79, 158
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Contours of u1/Uav when κ=0.1, τ=0.05, and De=84, 300
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Contours of the transverse velocity, shown the effect of torsion on the secondary flow when κ=0.1, τ=0.15, and 0.2 for ps=−10,000
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Contours of the transverse velocity, shown the effect of torsion on the secondary flow when κ=0.1, τ=0.01, 0.15, 0.2, 0.25 for ps=−300,000
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Contours of the transverse velocity shown the effect of Dean number on the secondary flow when κ=0.1 and τ=0.05
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Contours of the transverse velocity shown the effect of torsion on the secondary flow when (a) ε=1 with κ=0.01, τ=0.01, and De=183 and (b) ε=10 with κ=0.01, τ=0.1, and De=158

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