한국항해항만학회지 (Journal of Navigation and Port Research)

  • 제27권6호
  • /
  • Pages.653-659
  • /
  • 2003
  • /
  • 1598-5725(pISSN)
  • /
  • 2093-8470(eISSN)
한국항해항만학회 (Korean Institute of Navigation and Port Research)
권호 표지
DOI QR코드

DOI QR Code

Application of Composite Grid Method for the Simulation of Oscillating Body

  • 발행 : 2003.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The main objective of this study is to estimate the hydrodynamic forces and to investigate the nonlinear behaviors of fluid motion around the oscillating body on or below a free surface. We have developed a composite grid method to solve the radiation problems. This method is applied to numerical computation of the radiation forces generated by the oscillating body. The numerical results obtained by the present method are compared with the experimental data and a linear potential theory. As a result, we can confirm the accuracy of the present method. Finally, we have evaluated the effect of viscosity on the hydrodynamic forces acting on the oscillating body.

키워드

참고문헌

  1. Chung, J.S.(1977), Forces on Submerged Cylinders Oscillating near a Free Surface, J of Hydronautics, Vol. 11, No. 3, pp.100-l06 https://doi.org/10.2514/3.63081
  2. Demirdzic, I. and Peric, M.(1990), Finite Volume Method for Prediction of Fluid Flow in Arbitrarily Shaped Domains with Moving Boundaries, Int J Numerical Methods in Fluids, Vol.10, pp.771-790 https://doi.org/10.1002/fld.1650100705
  3. Ferziger,J.H. and Peric,M.(1999), Computational Methods for Fluids Dynamics, Springer Verlag
  4. Frank, W.(1967), Osicllation of a Cylinder in or below the Free Surface of Deep Fluids, Naval Ship Research & Development Center, Navy Dept., Rept.2357
  5. Hinatsu, M. and Ferziger, J.H.(1991), Numerical Computation of Unsteady Incompressible Flow in Complex Geometry Using a Composite Multigrid Technique, Int J Numerical Methods in Fluids, Vol. 13, pp.971-997 https://doi.org/10.1002/fld.1650130804
  6. Lee, S.M et al.(2003), Estimation of the Radiation Forces on Submerged-Plate Oscillating near a Free Surface by Composite Grid Method, Trans. West-Japan Society of Naval Architects, No.105, pp.113-122
  7. Lee, Y.G. et al.(1990), A Finite-Difference Simulation Method for 2D Flows about Bodies of Arbitrary Configuration, J of Society of Naval Architects of Japan, Vol.167, pp.1-8
  8. Newman,J.N.(1977), Marine Hydrodynamics, MIT Press, pp.145
  9. Takaki, M.(1984), On the Motions of Rectangular Cylinder with a Perforated Wall in Waves, 7th Ocean Engineering Symposium, pp.235-244