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Numerical Investigation on the Flow Noise Characteristics of the Hybrid Vertical-axis Wind Turbine

복합형 수직축 풍력발전기의 유동소음특성에 관한 수치적 고찰

  • 김상현 (부산대학교 기계공학부 응용기계음향 및 소음제어연구실) ;
  • 정철웅 (부산대학교 기계공학부 응용기계음향 및 소음제어연구실)
  • Received : 2014.08.06
  • Accepted : 2014.09.23
  • Published : 2014.11.30

Abstract

In this paper, flow noise characteristics of the hybrid vertical-axis wind turbine is investigated. Hybrid vertical-axis wind turbines consisting of two types of vertical-axis wind turbines, Savonius and Darrieus, are devised to maximize merits of one turbine and thus minimize demerits of the other turbine. In order to predict flow noise radiating from hybrid vertical-axis wind turbines, hybrid computatioinal aero acoustic techniques are used. First, unsteady flow fields around the turbine are predicted using computational fluid dynamics method. Then, the flow noise radiations from the turbines are predicted by applying acoustic analogy to the predicted flow fields. Based on numerical results, noise characteristics of a hybrid vertical-axis wind turbine is investigated and is compared with those of Savonius and Darrieus wind turbines.

Acknowledgement

Supported by : 한국연구재단

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