A Numerical Simulation of Horizontal Convection in Mesoscale

중규모에서의 수평대류에 관한 수치모의

  • 정우식 (부산대학교 대기과학과) ;
  • 이화운 (부산대학교 대기과학과, 부산대학교 대기과학과, 기상연구소 원격탐사연구실)
  • Published : 1998.04.01

Abstract

This study Is concerned with properties of a thermal convection in a stably stratified Boussinesq fluid caused by partial heating at the lower boundary. For thins purpose, two-dimensional, nonrotating system was employed. U the heating is very strong, convection takes the form of a turbulent plume. Othenuse, remains laminar. If the partial heating at the bottom boundary Is symmetric. the convection takes the form of a trubuient plume. Otherwise remains but beating form Is not so signiacant as to alter the vergence in the lower layer at the center of the partial heating area. The temperature perturbation is characterized by the temperature 'Cross-Over' over the partial heating area. These features are cleared ac- cording to the Increase of temperature difference between the center and side part of the bottom boundary.

Keywords

References

  1. J. Appl. Meteor. v.10 The radiation budget for polluted layers of the urban environment Atwater, M. A.
  2. J. Appl. Meteor. v.7 Observations of the urban heat island effect in New York City Bornstein, R. D.
  3. Ohio. Mon. Eea. Rev. v.97 Nocturnal urban boundary layer over Cincinnati Charke, J. F.
  4. J. Air Pollution Control Assoc. v.17 A summary of the New York urban air pollution dynamics research program Davidson, B.
  5. Phys. Fluids, Suppl. II v.12 Numerical study of heat transport by internal gravity waves above a growing unstable layer Deardorff, J. W.
  6. J. Fluid Mech. v.35 Laboratory investigation of non-steady penetrative convection Deardorff, J. W.;G. E. Willis;D. K. Lilly
  7. J. Meteor. Soc. Japan v.49 Dynamics of steady convections over heat and cool islands Kimura, R.
  8. J. Meteor. Soc. Japan v.54 Effects of general flows on a heat island convection. Part 1 : linear theory for the uniform flow Kimura, R.
  9. Rept. TR-69-11, Dept. of Meteorology and Oceanography An urban heat island model Leahey, D. M.
  10. Boundary-Layer Meteor. v.3 A numerical study of the nocturnal heat island over a medium-sized midlatitude city (Columbus, Ohio) McElroy, J. L.
  11. J. Appl. Meteor. v.8 A numerical model of the urban heat island Myrup, L. O.
  12. Tellus v.21 Turbulence spectra in stable and convective layers in the free atmosphere Myrup, L. O.
  13. Tellus v.9 Steady convective motion in a horizontal layer of fluid heated uniformly from above and cooled nonuniformly from below Stommel, H.;G. Veronis
  14. Boundary-Layer Metero. v.7 A wind-tunnel facility for simulation mountain and heated-island gravity waves Yamada, T.;R. N. Meroney