한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제33권3호
  • /
  • Pages.229-235
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  • 2019
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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전파하는 파동유장 중 전진하며 동요하는 2차원 날개의 동력해석

Powering Analysis of Oscillating Foil Moving in Propagating Wave Flow Field

  • 최윤락 (울산대학교 조선해양공학부)
  • Choi, Yoon-Rak (School of Naval Architecture and Ocean Engineering, University of Ulsan)
  • 투고 : 2019.02.08
  • 심사 : 2019.06.13
  • 발행 : 2019.06.30
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초록

In this study, a two-dimensional oscillating foil with forward speed in a propagating wave flow field was considered. The time-mean power to maintain the heaving and pitching motions of the foil was analyzed using the perturbation theory in an ideal fluid. The power, which was a non-linear quantity of the second-order, was expressed in terms of the quadratic transfer functions related to the mutual product of the heaving and pitching motions and incoming vertical flow. The effects of the pivot point and phase difference among the disturbances were studied. The negative power, which indicates energy extraction from the fluid, is shown as an example calculation.

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참고문헌

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