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Effects of Wind Fences on the Wind Environment around Jang Bogo Antarctic Research Station

Advances in Atmospheric Sciences 2017年第12期34卷 1404-1414页

作者： Jang-Woon WANG Jae-Jin KIM Wonsik CHOI Da-Som MUN Jung-Eun KANG hataek kwon Jin-Soo KIM Kyung-Soo HAN Department of Environmental Atmospheric Sciences Pukyong National University 45Yongso-ro Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Department of Spatial Information Engineering Pukyong National University 45Yongso-ro

This study investigated the flow characteristics altered by Jang Bogo Antarctic Research Station using computational fluid dynamics(CFD) modeling. The topography and buildings around Jang Bogo Station were constructed with computeraided-design data in the CFD model domain. We simulated 16 cases with different inflow directions, and compared the flow characteristics with and without Jang Bogo Station for each inflow direction. The wind data recorded by the site’s automatic weather station(AWS) were used for comparison. Wind rose analysis showed that the wind speed and direction after the construction of Jang Bogo Station were quite different from those before construction. We also investigated how virtual wind fences would modify the flow patterns, changing the distance of the fence from the station as well as the porosity of the fence. For westerly inflows, when the AWS was downwind of Jang Bogo Station, the decrease in wind speed was maximized(-81% for west-northwesterly). The wind speed reduction was also greater as the distance of the fence was closer to Jang Bogo Station. With the same distance, the fence with medium porosity(25%–33%) maximized the wind speed *** results suggest that the location and material of the wind fence should be selected carefully, or AWS data should be interpreted cautiously, for particular prevailing wind directions.

关键词： Jang Bogo Antarctic Research Station CFD model observation environment wind fence porosity

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