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Numerical Analysis of Wind Driven Current and Mesoscale Air Flow in Coastal Region with Land Topography  

Lee, Seong-Dae (Department of Civil Engineering, Halla University)
Publication Information
Journal of Ocean Engineering and Technology / v.20, no.5, 2006 , pp. 23-29 More about this Journal
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
Wind-generated circulation; Meso-scale air flow; Land topography; Surface heat budget; Numerical analysis;
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