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《热带气象学报(英文版)》 2014-01
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NUMERICAL SIMULATION ON THE WIND FIELD STRUCTURE OF A MOUNTAINOUS AREA BESIDE SOUTH CHINA SEA DURING THE LANDFALL OF TYPHOON MOLAVE

LI Lei;CHAN Pak-wai;HU Fei;ZHANG Li-jie;LIU Yan-xiang;Shenzhen National Climate Observatory,Shenzhen Meteorological Bureau;State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Institute of Atmospheric Physics;Hong Kong Observatory;Public Meteorological Service Center,Chinese Meteorological Administration;  
Leveraging the commercial CFD software FLUENT, the fine-scale three-dimensional wind structure over the Paiya Mountains on the Dapeng Peninsula near Shenzhen, a city on the seashore of South China Sea, during the landfall of Typhoon Molave has been simulated and analyzed. Through the study, a conceptual wind structure model for mountainous areas under strong wind condition is established and the following conclusions are obtained as follows:(1) FLUENT can reasonably simulate a three-dimensional wind structure over mountainous areas under strong wind conditions;(2) the kinetic effect of a mountain can intensify wind speed in the windward side of the mountain and the area over the mountain peak; and(3) in the leeward side of the mountain, wind speed is relatively lower with relatively stronger wind shear and turbulence.
【Fund】: National Natural Science Foundation of China(91215302 51278308);; Open Project for State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics(LAPC)
【CateGory Index】: P444
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