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TECHNICAL PAPERS: Conduction

An Inverse Method for Simultaneous Estimation of the Center and Surface Thermal Behavior of a Heated Cylinder Normal to a Turbulent Air Stream

[+] Author and Article Information
Jiin-Hong Lin, Cha’o-Kuang Chen, Yue-Tzu Yang

Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China

J. Heat Transfer 124(4), 601-608 (Jul 16, 2002) (8 pages) doi:10.1115/1.1473140 History: Received June 07, 1999; Revised February 27, 2002; Online July 16, 2002
Copyright © 2002 by ASME
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Figures

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General illustration of the cylinder system
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Detail geometry and computational grid of a half domain of the cylinder with four types of measuring locations: (a) Type 1; (b) Type 2; (c) Type 3; and (d) Type 4
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The isothermal patterns inside the heated cylinder: (a) Re=140,000; (b) Re=170,000; and (c) Re=219,000
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The estimated hot wire temperature for different values of Reynolds number with the measurement error σ=5 percent is considered and different types of measuring locations and adopted
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The estimated surface temperature for different types of measuring locations without considering measurement error (σ=0)
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The estimated surface temperature for different types of measuring locations with measurement errors σ=5 percent and σ=10 percent are considered: (a) Re=140,000; (b) Re=170,000; and (c) Re=219,000
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The estimated distribution of local Nusselt number along the heated cylinder surface without measurement error (σ=0)
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The estimated distribution of local heat flux along the heated cylinder surface without measurement error (σ=0)
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The estimated distribution of local Nusselt number along the heated cylinder surface with measurement errors (σ=3 percent and σ=5): (a) Re=140,000; (b) Re=170,000; and (c) Re=219,000
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The estimated distribution of local heat flux along the heated cylinder surface with measurement errors (σ=3 percent and σ=5): (a) Re=140,000; (b) Re=170,000; and (c) Re=219,000

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