Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지

A Numerical Study of a Effect of the Uniform Flow in Horizontal Convection

일반류가 수평대류에 미치는 영향에 관한 수치연구

  • Lee, Hwa-Woon (Dept. of Atmospheric Sciences, Pusan National University) ;
  • Kim, Yoo-Keun (Dept. of Atmospheric Sciences, Pusan National University) ;
  • Jung, Woo-Sik (Dept. of Atmospheric Sciences, Pusan National University)
  • Published : 1998.06.01
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Abstract

Effects of uniform flow on a two-dimensional mesoscale horizontal convection were investigated by using the vorticity and thermodynamic equations. For thins purpose, We simulated properties of a thermal convection m a stably stratified Boussinesq flued caused by partial heating at the center of a lower boundary If we don't consider effects of the uniform flow, the convection takes the form of aidsymmetrlc with respect to the z-alds. But when uniform flow Is strong, velocity field and temperature field consist of a sin91e cell structure which spreads upstream side of the partial heating area. The flow pattern for strong uniform flows takes the form of positive temperatue near the ground and negative temperature perturbation soft over the partial heating area, and downward motion directly over the upwind portion of the partial heating area and upward motion on the downstream side. The downstream edge of the upstream cell Is shifted in the downstream direction with the Increase of uniform flow almost linearly.

Keywords

References

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