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http://dx.doi.org/10.7780/kjrs.2021.37.6.2.6

A Study on the Surface Wind Characteristics in Suwon City Using a GIS Data and a CFD Model  

Kang, Geon (Division of Earth Environmental System Sciences, Pukyong National University)
Kim, Min-Ji (Division of Earth Environmental System Sciences, Pukyong National University)
Kang, Jung-Eun (Division of Earth Environmental System Sciences, Pukyong National University)
Yang, Minjune (Department of Earth and Environmental Sciences, Pukyong National University)
Choi, Seok-Hwan (Department of Urban Space Research, Suwon Research Institute)
Kang, Eunha (Department of Urban Space Research, Suwon Research Institute)
Kim, Jae-Jin (Department of Environmental Atmospheric Sciences, Pukyong National University)
Publication Information
Korean Journal of Remote Sensing / v.37, no.6_2, 2021 , pp. 1837-1847 More about this Journal
Abstract
This study investigated wind corridors for the entire Suwon-city area using a geographic information system and a computational fluid dynamics model. We conducted numerical simulations for 16 inflow wind directions using the average wind speeds measured at the Suwon automated synoptic observation system (ASOS) for recent ten years. We analyzed the westerly (dominant wind direction) and easterly cases (not dominant but strong wind speed) in detail and investigated the characteristics of a wind speed distribution averaged using the frequencies of 16 wind directions as weighting factors. The characteristics of the wind corridors in Suwon city can be summarized as; (1) In the northern part of Suwon, complicated flows were formed by the high mountainous terrain, and strong (weak) winds and updrafts (downdrafts) were simulated on the windward (leeward) mountain slope. (2) On the leeward mountain slope, a wind corridor was formed along a valley, and relatively strong airflow flowed into the residential area. (3) The strong winds were simulated in a wide and flat area in the west and south part of Suwon city. (4) Due to the friction and flow blocking by buildings, wind speeds decreased, and airflows became complicated in the downtown area. (5) Wind corridors in residential areas were formed along wide roads and areas with few obstacles, such as rivers, lakes, and reservoirs.
Keywords
geographic information system; computational fluid dynamics; wind corridors; Suwon city; Suwon ASOS;
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Times Cited By KSCI : 1  (Citation Analysis)
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