NUMERICAL SOLUTION OF ATMOSPHERIC FLOW FIELDS IN COMPLEX TERRAIN
Abstract
THE THESIS PRESENTS A NUMERICAL METHODOLOGY FOR THE SOLUTION OF STRATIFIED FLOWFIELDS. THE NAVIER-STOKES EQUATIONS COUPLED WITH THE CONTINUITY AND THE TEMPERATURE/CONCENTRATION EQUATIONS ARE SOLVED NUMERICALLY AND THE DEVELOPED COMPUTERCODE PROVIDES A USEFUL ENGINEERING TOOL. A ZERO-EQUATION (OR 2-EQUATION) CLOSURE ASSUMPTION IS ADOPTED FOR THE REYNOLD STRESSES. THE GOAL OF THE THESIS WAS THE DEVELOPMENT OF A ROBUST COMPUTER SOFTWARE FOR THE PREDICTION OF ATMOSPHERIC FLOWS OVER COMPLEX TOPOGRAPHY. THESE FLOWS ARE OF GREAT INTEREST AS FAR AS WINDENERGY AND ENVIRONMENTAL PROBLEMS ARE CONCERNED. WITHIN THE FRAMEWORK OF THE THESIS, THE WIND ATLAS OF A GREAT PART OF GREECE WAS PRODUCED, AND ALSO AN INTERESTING NUMERICAL STUDY OF THE TRAFFIC-INDUCED AIR POLLUTION OVER THE ATHENS BASIN WAS CARRIED OUT.
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