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TECHNICAL PAPERS

Numerical Analysis of Thermal Stratification in a Circular Pipe

[+] Author and Article Information
Jong Chull Jo, Yun Il Kim

Korea Institute of Nuclear Safety, Taejon 305-338, Korea

Seok Ki Choi

Korea Atomic Energy Research Institute, Taejon 305-353, Korea

J. Pressure Vessel Technol 123(4), 517-524 (May 23, 2001) (8 pages) doi:10.1115/1.1388008 History: Received November 14, 2000; Revised May 23, 2001
Copyright © 2001 by ASME
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References

Figures

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Example of the thermally stratified flow in a circular pipe
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The curvilinear nonorthogonal mesh
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Typical control volume cell in the computing mesh
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Fluid-solid interface in an orthogonal grid
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Fluid-solid interface in a nonorthogonal grid
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Transient isotherms for the fluid interface level 0.5di
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Transient isotherms for the three different fluid interface levels at nondimensional times 100 (left), 1000 (center), and 1500 (right)—(a) level 0.25di, (b) level 0.50di, (c) level 0.75di
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The variation of the local Nusselt no. (Nu)
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Transient top to bottom wall temperature distributions—(a) for fluid interface level 0.25di, (b) for fluid interface level 0.50di, (c) for fluid interface level 0.75di
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Transient maximum wall temperature differences both on the inner and outer wall surfaces
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Nondimensional temperatures on the inner and outer wall surfaces—(a) at nondimensional time 1000, (b) at nondimensional time 1500

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