Heat Generation in a Viscous Flow Between a Horizontally and Vertically Oscillating Plane and a Fixed Plane
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概要
- 論文の詳細を見る
The heat generation in an unsteady flow between an oscillating plane and a fixed plane is studied theoretically. It is assumed that one of the two planes is oscillating in the horizontal and vertical directions. The flow is two-dimensional and the fluid is viscous and incompressible. The equations governing the flow and the heat are analyzed taking the viscous dissipation into account. The coordinate in the direction along the surfaces of the planes is found to be separable in these equation. The governing equations depending on only two independent variables, the coordinate in the direction perpendicular to the plane surfaces and the time, are solved numerically using a finite difference method. It is found that, under the condition of a very large Prandtl number, the oscillation combined in the horizontal and vertical directions strongly enhances the heat generation in the viscous flow. If a small vertical oscillation is superposed on the horizontal one, the temperature depends on the coordinate along the plane surface in the antisymmetrical form through the convection term in the energy equation. This dependency plays an important role in heat generation. The mechanism of heat generation due to the combined oscillation is physically clarified using an order-of-magnitude analysis.
- 一般社団法人日本機械学会の論文
- 1990-08-15
著者
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Hasegawa Eiji
Faculty Of Science And Technology Keio University
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SEGAWA Masaki
Faculty of Science and Technology, Keio University
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Hasegawa Eiji
Faculty Of Engiineering Keio Univ.
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Segawa Masaki
Faculty Of Science And Technology Keio University
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HASEGAWA Eiji
Faculty of Science and Technology, Keio University
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