C212 TRANSIENT 3-D BUOYANT CONVECTION IN A VERTICAL CYLINDER WITH SIDEWALL OF AZIMUTHAL TEMPERATURE VARIATION(Natural convection in enclosure-2)

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概要

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• Numerical studies are made of transient natural convection of a Boussinesq-fluid in a vertically-mounted cylindrical container. The top and bottom endwalls are thermally insulated. At the initial state, the fluid is motionless and isothermal. Flow is driven by impulsively imposing the sidewall temperature which varies sinusoidally in the azimuthal direction. Interest is confined to flows driven by distinct azimuthal nonuniformity in thermal boundary condition. Principal nondimensional parameters are selected within the convection-dominant regime. Comprehensive numerical solutions are sought to the time-dependent three-dimensional Navier-Stokes equations. Flow development from the initial state to the steady-state is described. Time histories of temperature and the horizontal and vertical velocities in the interior core as well as in the boundary layer are displayed. These results are compared with the results from the two-dimensional configuration.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• SONG Tae

  Department of Ceramic Science and Engineering, Department of Physics, Changwon National University

• HYUN Jae

  Department of Chemical and Biological Engineering, Korea University

• Chung Kwang

  Department of Biology, Yonsei University

• Song Tae

  Department Of Ceramic Science And Engineering Changwon National University

• Hyun Jae

  Department Of Chemical And Biological Engineering Korea University

• Chung Kwang

  Department Of Mechanical Engineering Korea Advanced Institute Of Science & Technology

• Song Tae

  Department Of Mechanical Engineering Korea Advanced Institute Of Science & Technology

• Hyun Jae

  Department Of Mechanical Engineering Korea Advanced Institute Of Science & Technology

• HYUN Jae

  Department of Mechanical Engineering, Korea Advanced Institute of Science & Technology

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