Some Aspects of Compressible Rayleigh's Problem in a Rotating Cylinder
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概要
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The Rayleigh problem of a compressible gas contained in an infinitely long cylinderis considered. The time-dependent flow of the initially motionless gas driven by therapidly rotating cylindrical sidewall is described. The flow field is determined by thetwo principal dynamic mechanisms: the compressible Rayleigh effect and the cur-vature effect. Comprehensive numerical calculations have been performed to solvethe governing complete, time-dependent, compressible Navier-Stokes equations for-mulated in cylindrical coordinates. The details of the evolutions of flow and tempera-lure fields are presented. Urulike the Rayleigh problem about a flat plate, the cen-trifugal compression causes a small radially-outward normal velocity component in anarrow region very close to the sidewall. Also, due to the boundedness of the flow do-main, the propagating compression wave is reflected at the central axis. The imporlance of the curvature effect relative to the compressible Rayleigh effect decreases asE-M decreases, where E and M denote respectively the Ekman number and the Machnumber. Numerical results are exhibited to corroborate this assertion.
- 社団法人日本物理学会の論文
- 1989-01-15
著者
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Hyun Jae
Department Of Chemical And Biological Engineering Korea University
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Park Jun
Department Of Computer Science Hongik University
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Park Jun
Department Of Mechanical Engineering Korea Advanced Institute Of Science And Technology
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Hyun Jae
Department Of Mechanical Engineering Korea Advanced Institute Of Science And Technology
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HYUN Jae
Department of Mechanical Engineering,Korea Advanced Institute of Science and Technology
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Park Jun
Department of Applied Physics, Kyung Hee University, Yongin 446-701, Korea
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