Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Numerical Analysis of Wind Driven Current and Mesoscale Air Flow in Coastal Region with Land Topography

육상지형을 고려한 연안해역에서의 중규모 기상장과 취송류에 관한 수치해석

  • 이성대 (한라대학교 토목공학과)
  • Published : 2006.10.31
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Abstract

A quasi depth-varying mathematical model for wind-generated circulation in coastal areas, expressed in terms of the depth-averaged horizontal velocity components and free surface elevation was validated and used to understand the diurnal circulation process. The wind velocity is considered as a dominant factor for driving the current. In this paper, three-dimensional numerical experiments that included the land topography were used to investigate the mesoscale air flaw over the coastal regions. The surface temperature of the inland area was determined through a surface heat budget consideration with the inclusion of a layer of vegetation.A series of numerical experiments were then carried out to investigate the diurnal response of the air flaw and wind-generated circulation to various types of surface inhomogeneities.

Keywords

References

  1. 이성대 (2000). '대규모 해안매립에 따른 기상장 변동의 수치해석', 한국해양공학회논문집, 제14권, 제3호, pp 46-54
  2. Deardorff, J.W. (1978). 'Moisture with inclusion of a layer of vegetation', J. Geophys. Res., Vol 83, pp 1898-1903
  3. Jin, K., Ji, Z. and Hamrick, J.H. (2002). 'Modeling winter circulation in lake Okeechobee, Florida', J. Waterway, Port, Coastal, and Ocean Engrng., Vol 128, No 3, pp 114-125 https://doi.org/10.1061/(ASCE)0733-950X(2002)128:3(114)
  4. Koutitas, C and Koutita, M. (1986). 'A comparative study of three mathematical model for wind-generated circulation in coastal areas', Coastal Engineering, Vol 10, pp 127-138 https://doi.org/10.1016/0378-3839(86)90013-X
  5. Mellor, G.L. and Yamada, T. (1982). Turbulence Closure Model for Geophysical Fluid Problems', Rev. Geophys. Space Phys., Vol 20, pp 851-875 https://doi.org/10.1029/RG020i004p00851
  6. Pielke, R.A. (1984). Mesoscale meteorogical modeling, Academic Press
  7. Rogers, D.P. (1995). 'Coastal Meteorology', US. National Report to IUGG, Rev. Geophys., Vol 33
  8. Yamaguchi, K., Kondo, A. and Lee, S.D. (1992). 'Three-dimensional numerical simulation of land and sea breezes at Ulsan, Korea', Tech. Rep. of Osaka Univ., Vol 42, pp 207-214