전산유체해석을 통한 고층 건물의 풍압계수 산정
Estimation of Wind Pressure Coefficient for High-rise Buildings by CFD Analysis
3
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
최근 일본의 건축구조기준(AIJ 2015)에서는 CFD 해석을 통한 풍하중 산정을 허용한 바 있다. 이는 컴퓨터의 연산 능력 향상및 CFD 해석 이론의 발전으로 인해 해석의 결과가 풍동실험의 결과와 유사한 수준에 도달하였음을 뜻한다. 본 연구에서는 먼저 CFD해석의 이론적 배경을 살펴보고, 일본의 건축구조기준 및 유럽의 과학기술연구 프로그램인 COST에서 권장한 CFD 해석 절차를 토대로 해석을 진행하였다. 해석 결과의 신뢰성을 검증하기 위해 Tokyo Polytechnic University에서 제공하는 풍동실험 데이터를 사용하였고, 해석과 실험의 유사성을 평가하기 위하여 형상비가 3, 4, 5일 때의 풍방향하중을 비교하였다.
Abstract
Recently, Architectural Institute of Japan (AIJ 2015) allowed using CFD analysis for the calculation of wind loads. Thismeans that computer based analysis has reached to similar level with the wind tunnel test due to the improvement of the computingpower and CFD analysis theory. This study first dealt with the theoretical background of CFD analysis and conducted the analysisbased on the AIJ guideline and the recommendation by the European Cooperation in Science and Technology (COST). Wind tunneltest data provided by Tokyo Polytechnic University were used to verify the reliability of the analysis results. Wind loads with aspectratios of 3, 4 and 5 were compared to assess the similarity between the analysis results and the wind tunnel test data.
참고문헌 (19)
- 박권호, "표면조도의 영역밀도가 경계층에 미치는 영향", 한국풍공학회지, 24(1), pp.3~10 (2020), 한국풍공학회[DOI]
- 부수일, "난류경계층 내 놓인 사각물체 주위의 높이와 방위각에 따른 압력변동특성연구", 한국풍공학회지, 21(1), pp.13~20 (2017), 한국풍공학회
- 이영태, "유동입구 적분길이 스케일의 변화에 따른 난류경계층생성 특성", 한국풍공학회지, 21(4), pp.171~178 (2017), 한국풍공학회
- AIJ, "Recommendations for loads on buildings" (2015), Architectural Institute of Japan
- Launder, B. E., "Numerical prediction of flow, heat transfer, turbulence and combustion", pp.96~116 (1983), Pergamon
- Tominaga, Y., "Cross comparisons of CFD results of wind environment at pedestrian level around a high-rise building and within a building complex", Journal of Asian Architecture and Building Engineering, 3(1), pp.63~70 (2004)
- A. Mochida, "Comparison of various k-e models and DSM applied to flow around a high-rise building -report on AIJ cooperative project for CFD prediction of wind environment-", Wind and Structures, An International Journal, 5(2), pp.227~244 (2002), 한국풍공학회
- Yoshie, R., "Cooperative project for CFD prediction of pedestrian wind environment in the Architectural Institute of Japan", Journal of Wind Engineering and Industrial Aerodynamics, 95(9-1), pp.1551~1578 (2007)
- Shih, T-H., "A new kepsilon eddy viscosity model for high Reynolds number turbulent flows : Model development and validation", Computers & Fluids, 24(3), pp.227~238 (1994)
- Richards, P. J., "Appropriate boundary conditions for computational wind engineering models using the k-ε turbulence model", Computational Wind Engineering, Elsevier, 1, pp.145~153 (1993)
- 조현주, "건축물의 사용성 평가용 1년 재현기대풍속과 풍향계수의 추정", 한국풍공학회지, 23(1), pp.3~8 (2019), 한국풍공학회
- Yang, Y, "New inflow boundary conditions for modelling the neutral equilibrium atmospheric boundary layer in computational wind engineering", Journal of Wind Engineering and Industrial Aerodynamics, 97(2), pp.88~95 (2009)
- Tominaga, Y., "AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings", Journal of Wind Engineering and Industrial Aerodynamics, 96(10-11), pp.1749~1761 (2008)
- Ministry of Land, Infrastructure and Transport, "Korea Building Code (KBC 2019)", ~ (2019)
- Blocken, B., "CFD simulation of the atmospheric boundary layer : wall function problems", Atmospheric Environment, 41(2), pp.238~252 (2007)
- Fluent, ANSYS, "Ansys fluent theory guide", pp.724~746 (2011), ANSYS Inc., USA
- Franke, J., "Recommendations of the COST action C14 on the use of CFD in predicting pedestrian wind environment", The fourth international symposium on computational wind engineering (2006)
- Patankar, "Numerical heat transfer and fluid flow" (2018), Patankar, S.
- Moré, J. J., "Numerical analysis", pp.105~116 (1978), Springer