In this study, a circular tower, a modular tower and a multi-column tower were subjected to wind tunnel test and CFD (Computational Fluid Dynamic) simulation. A modular tower with an octagonal cross-section is designed for easy transportation during construction. A multi-column tower with four secondary columns, which have smaller cross-sectional area relative to the main column, is designed for mitigating wind load. Their mean wind force coefficients were obtained through wind tunnel test and CFD simulation, which were carried out by Daewoo Institute of Construction Technology. Their results are compared to each other to verify the reliability of calculated mean wind force coefficient. Difference between mean wind force coefficient values obtained from wind tunnel test and CFD simulation is shown to be within 10% for a circular tower and a multi-column tower, and slightly above 10% for a modular tower.

ABSTRACT
 1. 서 론
 2. 풍동실험 및 CFD 해석
  2.1 풍동실험
  2.2 CFD 해석
 3. 결론
 References

• 정진욱(대우건설 기술연구원) | Joung Jin-Wook
• 방부형(대우건설 기술연구원) | Bang Boo-Hyung
• 김영민(대우건설 기술연구원) | Kim Young-Min
• 백기현(대우건설 기술연구원) | Baek Ki-Hyun