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Computational Flow Analysis on Wind Profile Change Projected to a Wind Turbine Behind Saemangeum Seawall

새만금 방조제에 의한 풍력터빈 입사풍 변화의 전산유동해석

  • Woo, Sang-Woo (Doosan Heavy Industries & Construction Co. / Wind Turbine Development & Engineering Team) ;
  • Kim, Hyun-Goo (Korea Institute of Energy Research / New & Renewable Energy Resource Center)
  • 우상우 (두산중공업 풍력기술개발팀) ;
  • 김현구 (한국에너지기술연구원 신재생에너지자원센터)
  • Received : 2012.09.25
  • Accepted : 2013.03.06
  • Published : 2013.03.25

Abstract

Jeollabuk-do has announced a future plan for the Saemangeum Wind Farm which includes the installation of fourteen wind turbines in a single line, located 500m back from the Saemangeum Seawall. It is anticipated as a positive effect that, for sea breeze blowing toward land, the average wind speed could be accelerated and the wind speed distribution could be uniformized by dint of the seawall, an upstream structure of the turbines. At the same time it is also anticipated as a negative effect that the strength of wind turbulence could be increased due to the flow separation generated at the back end of the seawall. According to the results of the computational fluid dynamics analysis of this paper, it has been observed that, at the 50m zone on the road surface located at the uppermost part of the Saemangeum Seawall, the average wind speed has been accelerated by approximately 6~7% and that wind shear has been decreased by 70%, but this positive effect disappears in the zone situated beyond the 100m from the back end of the seawall. It has also been observed that flow separation exists to a limited extent only below the bottom of the blade-sweeping circle and, furthermore, does not extend very far downstream of the wind. As a conclusion, it can be said that the seawall neither positively nor negatively affects the proposed Saemangeum Seawall Wind Farm layout.

Keywords

References

  1. 한겨례신문, 2009년 10월 7일자, "새만금 풍력클러스터 예비타당성 조사 통과".
  2. 전북일보, 2011년 6월 30일자, "새만금 풍력단지 9월초 밑그림 나온다".
  3. Deaves, D. M., 1980, "Computations of Wind Flow Over Two-Dimensional Hills and Embankents", Journal of Wind Engineering and Industrial Aerodynamics. Vol. 6, pp. 89-111. https://doi.org/10.1016/0167-6105(80)90024-0
  4. Hauf, T., Neumann-Hauf, G., 1982, "The Turbulent Wind Flow Over an Escarpment", Boundary-Layer Meteorol., Vol. 24, pp. 357-369. https://doi.org/10.1007/BF00121600
  5. Shiaua, B. S., Hsieha, C. T., 2002, "Wind Flow Characteristics and Reynolds Stress Structure Around the Two-Dimensional Embankment of Trapezoidal Shape with Different Slope Gradients", J. Wind Eng. Ind. Aerodyn., Vol. 90, pp. 1645-1656. https://doi.org/10.1016/S0167-6105(02)00276-3
  6. Kim, H.-G., Lee, B.-H., Ha, Y.-C., Jeon, W.-H., 2012, "Wind Tunnel Experiment and Computational Flow Analysis on a Wind Farm Constructed Beyond Dyke", The 8th KSME-JSME Thermal & Fluids Engineering Conference, Incheon, Korea.
  7. 김현구, 장문석, 2010, 풍속보정용 구조물, 대한민국 특허 10-0969595.
  8. Kim, H.-G., Patel, V.C., 2000, "Test of Turbulence Models for Wind Flow Over Terrain with Separation and Recirculation", Boundary-Layer Meteorology, Vol. 94, No. 1, pp. 5-21. https://doi.org/10.1023/A:1002450414410
  9. 한국에너지기술연구원, 국가바람지도 웹서비스, KIER-$WindMap^{TM}$, www.kier-wind.org

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