Study of Nonlinear Wave Diffraction Using the 2-Dimensional Numerical Wave Tank

2차원 수치 파수조를 이용한 비선형파 산란의 연구

  • 김용직 (부산수산대학교, 선박공학과)
  • Published : 1993.12.01

Abstract

Numerical wave tank is a robust tool by which the nonlinear interactions between the body and the free-surface can be treated in time-domain. In this paper, a two-dimensional numerical wave tank based on the Spectral/Boundary-Element Method is developed, and applied successfully to the study of nonlinear wave diffraction around a submerged circular cylinder. Particularly, it is shown that the high-order wave components of significant wave height are developed in the lee-side of the cylinder and that these waves result in a negative drift force on the circular cylider.

Keywords

References

  1. Proc. 2nd Intl. Conf. on Num. Ship Hydrodyn Numerical Solution of Transient Nonlinear Free-Surface Motion Outside or Inside Moving Bodies Faltinsen,O.M.
  2. Proc. 3rd Intl. Conf. on Num. Ship Hydrodyn. Nonlinear Ship Motion Vinje,T.;Brevig,P.
  3. Proc. 15th Symp. on Naval Hydrodyn. Nonlinear Forced Motions of Floating Bodies Lin,W.M.;Newman,J.N.;Yue,D.K.
  4. Proc. IUTAM Sym. on Nonlinear Water Waves Nonlinear Hydrodynamic Forces due to Two-Dimensional Forced Oscillation Hwang,J.H.;Kim,Y.J.;Kim,S.Y.
  5. J. of Fluid Mech. v.184 A High Order Spectral Method for the Study of Nonlinear Gravity Waves Dommermuth,D.G.;Yue,D.K.
  6. 대한조선학회 논문집 v.29 no.3 고차 스펙트럴법에 의한 2차원 수치 파수조 개발에 관한 연구 김용직;황종홀
  7. J. of Fluid Mech. v.16 First and Second -Oder Forces on a Cylinder Submerged Under a Free Surface Ogilvie,T.F.
  8. J. of Fluid Mech. v.174 A Numerical Solution of the Second-Order Wave-Diffraction Problem for a Submerged Cylinder of Arbitrary Shape Vada,T.
  9. Proc. Royal Society v.A352 The Mean Forces Exerted by Waves on Floating or Submerged Bodies with Applications to Sand Bars and Wave Power Machines Longuet-Higgins,M.S.
  10. NSRDC Rep.2375 Oscillation of Cylinders in or below the Free Surface of Deep Fluids Frank,W.
  11. The Fast Fourier Transform Brigham,E.O.
  12. Proc. 16th Symp. on Naval Hydrodyn. Two-Dimensional Transient Motions with Large Amplitude by Time-Domain Method Kim,Y.J.;Hwang,J.H.