Stability Characteristics of a Natural Convection Flow above a Horizontal Line Heat Source

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概要

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• Stability characteristics of a Iaminar natural convection flow above a horizontalline heat source are theoreticallv investiuated on the basis of the linear stabilitvtheory. The coupled Orr-Sommerfe[d equations are integrated numerically foranti-symmetric disturbances. The contours for various amplification rates areobtained in the Grashof number-wavenumber and the Grashof number-frequencydiagrams. The eigenfunctions for the velocity and temperature disturbances arealso calculated. Experiments are carried out for verifying the above-obtainedtheoretical results. All the experimental results are found to be in good agreementwith them. A phenomenon called swaying motion, which was already reported inprevious papers, seems to be explicable within the scope of the linear stabilitytheory developed in the present paper.

• 社団法人日本物理学会の論文
• 1984-04-15

著者

• Yosinobu Hirowo

  Department Of Mechanical Engineering College Of Engineering University Of Osaka Prefecture

• Wakitani Shunichi

  Department Of Mechanical Engineering College Of Engineering University Of Osaka Prefecture

• Yoshinobu Hiroo

  Department of Mechanical Engineering,College of Engineering,University of Osaka Prefecture

関連論文

• Unsteady Free Convection near a Forward Stagnation Point at Small Prandtl Number
• Experimental Study on Instability of Natural Convection Flow above a Horizontal Line Heat Source
• Stability Characteristics of a Natural Convection Flow above a Horizontal Line Heat Source
• Instability of a Two-Dimensional Wall Plume
• Frozen Region Formed around a Line Heat Sink under a Uniform Stream of an Incompressible Fluid
• The Stability of a Natural Convection Flow above a Point Heat Source

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