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CFD 해석을 활용한 장보고기지의 적설형상예측

A Snow Drift Prediction of Jangbogo Station using CFD Analysis

  • 투고 : 2012.06.29
  • 발행 : 2012.12.25

초록

The purpose of this study is to predict snowdrifting conditions before building an Antarctic station. For this purpose, the studies conducted by Japan and Germany to predict snowdrifting were investigated first. Computer simulation and physical scale model tests on the site were used as evaluation methods for snowdrift prediction. According to the test result, it can be known that CFD and the physical scale model tests cannot predict the amount of drifted snow, but can predict snowdrift patterns. Based on the findings, the actual snowdrifting conditions measured around the temporary camp built on the Jangbogo Station site and the numerical flow analysis were compared, and the result of actual measurement and the result of CFD analysis showed similar snowdrift patterns. Snow accumulated long on the ground like a tail because vortex behind the building and the building structure slowed down the speed of snow. The analysis of airflow around the Jangbogo Station conducted based on the studies conducted previously shows low speed airflow distribution in the east of the building due to the wind direction from west. Especially, if there is airflow with snow behind the pillar of the Jangbogo Station where the tail of vortex and downwind meet, large snow accumulations is predicted in the east of the building. And, in the event that downwind carries snow toward the central point of the Jangbogo Station, large snow accumulations is predicted behind the central core.

키워드

과제정보

연구 과제 주관 기관 : 한국건설기술연구원

참고문헌

  1. 일본 극지연구소, 적설연구제공자료, 일본극지연구소
  2. 독일 극지연구소, 적설연구제공자료, 독일극지연구소
  3. AWS(Automatic Weather Station) 데이터, 한국해양연구원 부설 극지연구소, 2010-2011
  4. Bill F. Waechter etd, Snowdrift Control Design : Application of CFD Simulation Techniques, 1997
  5. 富永禎秀,建物周辺の飛雪現象へのCFDの適用,,ながれ28, 2009
  6. Yoshihide TOMINAGA etc., CFD Prediction of Snowdrift around a Cubic Building Model, The 4th Intermational Symposium CWE2006. 2006
  7. Bernd Leltl etc., Physical Modeling of Snow Drift and Wind Pressure Distribution at The Proposed German Antarctic Station NeumayerIII, OMAE2006, 2006
  8. 송영학, 이원학, 임석호, 박스 유닛공법을 이용한 남극 대륙기지의 가설캠프 설계, 제작에 관한 연구, 대한건축학회논문집, v.27 n.10, 2011