• 제목/요약/키워드: 다좌표계법

검색결과 3건 처리시간 0.015초

비틀림각에 따른 HWAT의 공력특성 전산해석 (CFD ANALYSIS OF AERODYNAMIC CHARACTERISTICS OF HWAT BASED ON THE DIFFERENT TWIST ANGLE USING CFD)

  • 이명수;유성수;황도연;한병윤;박형구
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2009년 추계학술대회논문집
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    • pp.19-26
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    • 2009
  • The objective of this study is to investigate aerodynamic characteristics of a Horizontal-axis wind turbines(HAWT), using CFD method with a commercial code STAR-CCM+ version 3.06. To verify the reliability of the computations, the CFD results are compared with the experimental ones of the National Renewable Energy Laboratory(NREL) Phase Ⅵ HAWT. For the comparison and examination of aerodynamic characteristics, the existent shape with a predesigned twist angle was replaced by the one with one-dimensional linear twist angle. In this study, the pressure contour and stream line around the blade were analyzed as main focus. Through this study the more efficient shape of airfoil is suggested with consideration of manufacturing cost.

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1600kW급 프로펠러 블레이드 공력설계 및 해석 (Aerodynamic Design and Analysis on 1600kW Class Propeller Blade)

  • 최원;김광해;원영수;이원중
    • 한국유체기계학회 논문집
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    • 제15권3호
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    • pp.19-24
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    • 2012
  • Propeller shall have high efficiency and improved aerodynamic characteristics to get the thrust to fly at high speed for the turboprop aircraft. That is way Clark-Y airfoil which is used to conventional 1600kW class aircraft propeller is selected as a blade airfoil. Adkins method is used for aerodynamic design and performance analysis with respect to the propeller design point. Adkins method is based on the vortex-blade element theory which design the propeller to satisfy the condition for minimum energy loss. propeller geometry is generated by varying chord length and pitch angle at design point of turboprop aircraft. The propeller design results indicate that is evaluated to be properly constructed, through analysis of propeller aerodynamic characteristics using the Meshless method and MRF, SM method.

중형 터보프롭 항공기급 프로펠러 공력특성 전산해석 (CFD Analysis of Aerodynamic Characteristics of Regional Turboprop Aircraft Propeller)

  • 최원;최재승;정인면;김지홍;이일우;한성훈;원영수
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2011년 춘계학술대회논문집
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    • pp.447-452
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    • 2011
  • Propeller shall have high efficiency and improved aerodynamic characteristics to get the thru5t to fly at high speed for the Regional turboprop aircraft. That is way Clark-Y airfoil which is used to conventional turboprop aircraft propeller is selected as a blade airfoil. Adkins method is used for aerodynamic design and performance analysis with respect to the propeller design point. Adkins method is based on the vortex-blade element theory which design the propeller to satisfy the condition for minimum energy loss. propeller geometry is generated by varying chord length and pitch angle at design point of Regional turboprop aircraft. The propeller design results indicate that is evaluated to be properly constructed, through analysis of propeller aerodynamic characteristics using the Meshless method and MRF, SM method.

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