C307 SPIN-UP OF WATER NEAR 4℃ IN A CYLINDER(Rotation related natural convection)
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概要
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A numerical study is made of the flow of a density-stratified fluid in a rotating vertical cylinder. The cylinder container is filled with a non-Boussinesq fluid(water near 4℃), and its rotation rate changes abruptly at the initial instant. The temperature at the bottom disk(T_B) is density-maximum temperature(T_m), and the temperature at top disk(T_T) is higher than T_B. The density-temperature(ρ-T) relation is modeled by a quadratic function. To examine the effect of nonlinear density-temperature relationship, comparisons are made between the cases of a Boussinesq fluid and a non-Boussinesq fluid. The detailed transient flow fields are analyzed to illustrate the salient physics pertinent to spin-up of a non-Boussinesq fluid. The spin-up times of a non-Boussinesq fluid are gauged.
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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LEE Chang
Department of Oral Biology, Yonsei University College of Dentistry
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HYUN Jae
Department of Chemical and Biological Engineering, Korea University
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Lee Chang
Department Of Animal Science Utsunomiya University
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Hyun Jae
Department Of Chemical And Biological Engineering Korea University
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Kwak Ho
School Of Mechanical Engineering Kumoh National University Of Technology
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Lee Chang
Department Of Mechanical Engineering Korea Advanced Institute Of Science & Technology
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Lee Chang
Departlnent Of Biology College Of Natural Sciences Kyungpook National University Korea
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KWAK Ho
School of Mechanical Engineering, Kumoh National University of Technology
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