농촌계획 Vol.24 No.3 (p.73-86)

CFD 시뮬레이션을 이용한 시설원예단지 여름철 외부 열환경 특성 및 개선방안

A Characteristics and Improvement of Thermal Environment in Summer of Protected Horticulture Complex Using CFD Simulation
키워드 :
Agricultural Landscape,Climate Regulation,Computational Fluid Dynamics(CFD),Ecosystem Service,Heat Island

목차

ABSTRACT
I. 서 론
II. 연구방법
  2.1 연구대상지 및 기상자료 수집
  2.2 CFD 시뮬레이션 분석방법
  2.3 연구대상지에 대한 개선방안 설정
III. 결과 및 고찰
  3.1 기상현황 분석 및 현장조사를 통한 경계조건 설정
  3.2 시설원예단지 외부 열환경 분포특성(원안)
  3.3 연구대상지 개선방안 열환경 분포특성
IV. 결 론
References

초록

Agricultural or rural landscape provides various ecosystem services. However, the ecosystem services function is declining due to various environmental problems such as climate change, land use change, stream intensification, non-point pollution and garbage. The A1B scenario predicts that the mean air temperature of South Korea will rise 3.8℃ degrees celsius in 2100. Agricultural sector is very vulnerable to climate change, so it must be thoroughly predicted and managed. In Korea, the facility horticulture complex is 54,051ha in 2016 and is the 3rd largest in the world(MAFRA, 2014). Facilities of horticultural complexes are reported to cause problems such as groundwater decrease, vegetation and insects diversity reduction, landscapes damage and garbage increase, compared with the existing land use paddy fields. Heat island phenomenon associated with climate change is also accelerated by the high heat absorption of horticultural sites. Therefore, we analyzed the heat island phenomenon occurring in the facility of horticultural complex in Korea. As an improvement measurement, I examined how much air temperature is reduced by putting the channel and the open space. In the case of the Buyeo area, the Computational Fluid Dynamics (CFD) simulation was analyzed for the average summer temperature distribution in the current land use mode at 38.9℃. As an improvement measurement, CFD simulation after 10% of 6m water channel was found to have an effect of lowering the summer temperature of about 2.7℃ compared with the present average of 36.2℃. In addition, CFD simulations after analyzing 10% of the open space were analyzed at 34.7℃, which is 4.2℃ lower than the present. For the Jinju area, CFD simulations were analyzed for the average temperature of summer at 37.8℃ in the present land use pattern. As an improvement measure, CFD simulations after 10% of 6m water channel were found to have an effect of lowering the summer temperature of about 2.6℃ compared to the current average of 35.2℃. In addition, CFD simulations after analyzing 10% of the open space were analyzed at 33.9℃, which is 3.9℃ lower than the present. It can be said that the effect of summer temperature drop in open space and waterway has been proven. The results of this study are expected to be reflected in sustainable agriculture land use and used as basic data for government - level policy in land use planning for climate change.