Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Study on the Impacts of Lateral Boundary Conditions and Thermodynamics of Urban Park using Coupling System of WRF / ENVI-met

WRF / ENVI-met 통합모형을 적용한 도시 공원의 경계 조건 및 열역학적 영향 분석 연구

  • Lee, Tae-Jin (Division of Earth Environmental System, Pusan National University) ;
  • Yoo, Jung-Woo (Division of Earth Environmental System, Pusan National University) ;
  • Lee, Hwawoon (Division of Earth Environmental System, Pusan National University) ;
  • Won, Hyo-sung (Korea Meterological Administration) ;
  • Lee, Soon-Hwan (Department of Earth Science Education, Pusan National University)
  • 이태진 (부산대학교 지구환경시스템학부) ;
  • 유정우 (부산대학교 지구환경시스템학부) ;
  • 이화운 (부산대학교 지구환경시스템학부) ;
  • 원효성 (기상청) ;
  • 이순환 (부산대학교 지구과학교육과)
  • Received : 2017.02.23
  • Accepted : 2017.04.13
  • Published : 2017.04.30
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Abstract

Since the late 20th century, the urbanization in Korea has been rapidly increasing, especially in major cities like Seoul, as a result of industrialization. One of the aspects of urbanization is coating the surfaces with impervious concrete or asphalt that water cannot penetrate. In addition, various urban, such as urban heat islands, which also have a great impact on the urban environment, occur within the cities. Therefore, the urban environment is gradually becoming hot and dry, and the need for more urban parks to compensate for these negative impacts is growing. Thus, several numerical studies have been conducted to assess these problems using coupled Numerical Weather Prediction (NWP) and Computational Fluid Dynamics (CFD). In this study, an experiment was conducted to determine the accuracy of the area of the input field using Weather Research and Forecasting (WRF) model, and applying the more accurate input field to a numerical simulation using ENVI-met, in order to investigate the effect of urban parks on the thermal comfort. The results showed that an input field with a larger area is more accurate than that with a smaller area, because the surrounding terrain and cities are considered in details in the experiment with the larger area. Subsequently, the more accurate input field was used in ENVI-met, and the results of this simulation showed that the presence of the urban park increased the thermal comfort and improved the humidity conditions.

Keywords

References

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