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뒷날에 붙인 회전자로 순환유동을 강화하는 날개장치의 성능 연구

A Study on the High Lifting Device Equipped with the Trailing Edge Rotor for the Enhancement of Circulation Control

  • 오정근 (인하대학교 정석물류통상연구원) ;
  • 김효철 (인하대학교 정석물류통상연구원)
  • Oh, Jung-Keun (Jungseok Research Institute of International Logistics and Trade, Inha University) ;
  • Kim, Hyo-Chul (Jungseok Research Institute of International Logistics and Trade, Inha University)
  • 투고 : 2010.04.14
  • 심사 : 2010.07.05
  • 발행 : 2010.08.20

초록

For a long times it has been believed that the Magnus effect of the rotating cylinder could be utilized for the lifting devices applicable to marine practices. It has been reported that the rotating cylinder installed on upper deck of commercial vessel could play a energy saving role however the idea might be applicable in a very rare case in ship building practices. In this study special high lift rudder system equipped with the trailing edge rotor has been suggested in correspondence with the increasing requirement of greater rudder force. Through the numerical simulation it is cleared that the trailing edge rotor could play a role in enhancement of circulation and refinement of boundary layer of the rudder system. At the same time it is found out that the lift force of the rudder system without rotation of trailing edge rotor could be doubled when the circumferential velocity of the trailing edge rotor is equal to twice of the inflow velocity.

키워드

참고문헌

  1. Ahn, H.S. and Kim, H., 1999, "Experimental Study on the Effects of Water Jetting on a Flapped Rudder," Journal of the Society of Naval Architects of Korea, Vol. 36, No. 1, pp. 22-29.
  2. Ahn, H.S. and Kim, H., 2003, "An Experimental Study of Coanda Effect on the Flapped Control Surfaces," Journal of the Society of Naval Architects of Korea, Vol. 40, No. 5, pp. 10-16. https://doi.org/10.3744/SNAK.2003.40.5.010
  3. Al-Garni, A.Z., Al-Garni, A.M., Ahmed, S.A. and Sahin, A.Z., 2000, "Flow Control for an Airfoil with Leading-Edge Rotation: An Experimental Study," Journal of Aircraft, Vol. 37, No. 4, pp. 617-622. https://doi.org/10.2514/2.2673
  4. Brooks, J.D., 1963, The Effect of a Rotating Cylinder at the leading and Trailing Edges of a Hydrofoil, U.S. Naval Ordnance Test Station, NAVWEPS Report 8042.
  5. Hong, S.J. and Lee, S.H., 2004, "A Study on the Flow Characteristics around a Coanda Control Surface," Journal of the Society of Naval Architects of Korea, Vol. 8, No. 2, pp. 13-19.
  6. Choi, S.H, Choi, H.C. and Kang, S.M., 2002, "Characteristics of Flow Over a Rotationally Oscillating Cylinder," Transactions of the KSME B, Vol. 26, No. 4, pp. 515-523. https://doi.org/10.3795/KSME-B.2002.26.4.515
  7. Moon, J.K., Park, J.C., Chun, H.H. and Suh, S.B., 2005, "Numerical Simulation on Laminar Flow Past a Rotary Oscillating Circular Cylinder," Journal of the Society of Naval Architects of Korea, Vol. 42, No. 4, pp. 368-378. https://doi.org/10.3744/SNAK.2005.42.4.368
  8. Park, J.J. and Lee, S.H., 2000, "A Numerical Study on a Circulation Control Foil using Coanda Effect," Journal of the Society of Naval Architects of Korea, Vol. 37, No. 2, pp. 70-76.
  9. Seo, D.W., Kim, J.H., Kim, H. and Lee, S.H., 2008, "Influence of Jet Nozzle Arrangement on the Performance of a Coanda Foil," Journal of the Society of Naval Architects of Korea, Vol. 45, No. 6, pp. 569-578. https://doi.org/10.3744/SNAK.2008.45.6.569