The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness

[+] Author and Article Information
G. Wagner, M. Kotulla, P. Ott

Laboratoire de Thermique Appliquée et de Turbomachine (LTT), Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland

B. Weigand, J. von Wolfersdorf

Institute of Aerospace Thermodynamics (ITLR), University of Stuttgart, D-70569 Stuttgart, Germany

J. Turbomach 127(1), 175-182 (Feb 09, 2005) (8 pages) doi:10.1115/1.1811089 History: Received December 01, 2003; Revised March 01, 2004; Online February 09, 2005
Copyright © 2005 by ASME
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Grahic Jump Location
Preconditioning of the cylinder model and rapid insertion mechanism
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Configuration of hollow cylinder model
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Geometry under consideration
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Effect of surface curvature using comparison between Eqs. (1) and (21)
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Deviation of the approximate solution Eq. (21) from the exact solution Eq. (20)
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Regions of validity for approximate (Eq. (21)) and flat plate (Eq. (1)) solutions depending on allowable error
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Effect of finite wall thickness for flat plate
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Effect of finite wall thickness for convex cylinder wall for Big,d=5
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Effect of backside convection for Big,d=5
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Effect of backside temperature condition for Big,d=5
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Heat transfer coefficient obtained using the flat plate semi-infinite model (Eq. (1))
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Heat transfer coefficient obtained using the approximate model (Eq. (21))
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Heat transfer coefficient obtained using the exact solution (Eq. (20))



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