한국해양공학회지 (Journal of Ocean Engineering and Technology)

한국해양공학회 (Korean Society of Ocean Engineers)
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3차원 표면효과익의 자유표면 효과에 관한 수치연구

  • 발행 : 1998.05.30
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초록

A three-dimensional WIG (Wing In Ground effect) moving above free surface is numerically studied by means of finite difference techniques. The air flow field around the WIG is analyzed by MAC (Marker & Cell) method, and interactions between WIG and the free surface are appeared as the variation of pressure distribution acting on the free surface. To analyze the wavemaking phenomena by those pressure distributions, the NS (Navier-Stokes) solver is employed in which nonlinearities of the free surface conditions can be included. Through the numerical simulation, Cp values and lift/drag ratio are carefully reviewed by changing the height/chord ratio. The section shape of model is NACA0012 with the span/chord ratio of 3.0. Through computational results, it is confirmed that the effect of free surface is small enough to treat it as a rigid wavy wall.

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참고문헌

  1. Luftfahrtechnik - Raumfahrteknik v.10 The Aerodynamic Ground Effect and Development of the Aerofoil Boat Lippisch, A. M.
  2. Effect of Turbulent Jet Mixing on the Static Lift Performance of a Power-Augmented-Ram Wing Smithey, W.J.H.;Papadales, B.S.,Jr.;Chaplin, H.R.
  3. Jour., Soc., Naval Arch. of Japan v.174 Simulation on Viscous Flow around Two-Dimensional Power-Augmented Ram Wing in Ground Effect Hirata, N.
  4. Jour. of Soc., Naval Arch. of Japan v.170 Simulation of Hydrodynamic Effects of 2-Dimensional WIG moving near the Free Surface Masuda, K.;Suzuki, K.
  5. Trans. of West-Japan Soc. of Naval Arch. v.83 Free Surface Effect on Characteristics of Two-Dimensional Wing Kataoka, K.;Ando, J.
  6. 한국해양공학회지 v.11 no.1 3차원 PAR WIG(Power Augmented Ram Wing in Ground Effect)의 수치연구 곽승현
  7. Theory of Wing Sections Abbott, I.H.;Von Doenhoff, A.E.
  8. Jour., Soc., Naval Arch. of Japan v.179 Numerical Study on the Aerodynamic characteristics of a 3-D Power Augmented Ram Wing in Ground Effect Hirata, N.
  9. '97 초고속선 Workshop 20인승 해면효과익 여객선 선형개발 신명수;김정환;김상근;이종식;전호환
  10. 한국해양공학회지 v.9 no.2 2차원 익형의 자유수면 효과에 관한 연구 박일용;전호환
  11. 대한조선학회 추계연구발표회 2차원 표면효과익 주위의 유동장 수치 계산 정세민;이영길;이승희
  12. KOJAM'96, 3rd Korea-Japan Joint Workshop on Ship & Marine Hydrodynamics Three-Dimensional Flow Simulation around a Wing-In-Ground Effect Ship having the Complex Geometry C.H. Park;M.S. Shin;S.I. Yang