3 차원 시간영역 전진속도 자유표면 Green 함수와 2 차 경계요소법을 사용한 선체의 방사포텐셜 수치계산
Numerical Study of the Radiation Potential of a Ship Using the 3D Time-Domain Forward-Speed Free-Surface Green Function and a Second-Order BEM
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초록
The radiation potential of a ship advancing in waves is studied using the 3D timedomain forward-speed free-surface Green function and the Green integral equation. Numerical solutions are obtained by making use of the 2nd order BEM(Boundary Element Method) which make it possible to take account of the line integral along the waterline in a rigorous manner. The 6 degree of freedom motion memory functions of a hemisphere and the Wigley seakeeping model obtained by direct integration of the time-domain 3D potentials over the wetted surface are presented for various Froude numbers.
Abstract
The radiation potential of a ship advancing in waves is studied using the 3D timedomain forward-speed free-surface Green function and the Green integral equation. Numerical solutions are obtained by making use of the 2nd order BEM(Boundary Element Method) which make it possible to take account of the line integral along the waterline in a rigorous manner. The 6 degree of freedom motion memory functions of a hemisphere and the Wigley seakeeping model obtained by direct integration of the time-domain 3D potentials over the wetted surface are presented for various Froude numbers.
참고문헌 (19)
- Beck, R.F., "Transient Motion of Floating Bodies at Zero Forward Speed", J. of Ship Research, 31(3), pp.164~176 (1987)
- Beck, R.F., "Modern Computational Methods for Ships in Seaway", Trans. SNAME, 109, pp.1~48 (2001)
- Bingham, H.B., "The Simulations of Ship Motions", Proceedings, 6th Int. Conf. on Numerical Ship Hydrodynamics, pp.561~579 (1993)
- Bingham, H.B., "Prediction of the Seakeeping Characteristics of Ships", Proceedings 20th Symp. on Naval Hydrodynamics, pp.27~46 (1994)
- Brard, R., "Introduction to the Theoretical Study on the Pitch Motion of an Advancing Ship (in French)", Bulletin of L’ ASSOCIATION TECHNIQUE MARITIME ET AERONAUTIQUE, 47 (1947)
- Chang, M.S., "Computation of Three-Dimensional Ship Motion with Forward Speed", Proceedings 2nd Int. Conf. on Num. Ship Hydrodynamics (1977), University. Of California
- Guevel, P., "Formulation of the Problem of the Oscillations of the Floating Bodies Advancing with Constant Forward Speed and Excited by Incident Waves (in French)", Summary of the 4th Congrès Français de Mécanique, pp.324~325 (1979)
- Hong, D.C., "On the Improved Green Integral Equation Applied to The Water-Wave Radiation-Diffraction Problem", Journal of the Society of Naval Architecture of Korea, 24(1), pp.1~8 (1987)
- Hong, D.C., "Unsteady Wave Generation by an Oscillating Cylinder Advancing under the Free Surface", Journal of the Society of Naval Architecture of Korea, 25(2), pp.11~18 (1988)
- 홍도천, "손상침수로 자세변화된 바지형 선박의 파랑하중해석", 대한조선학회 논문집, 42(4), pp.379~387 (2005), 대한조선학회
- Hong, S.Y., "Analysis of Steady and Unsteady Flow around a Ship using a Higher-Order Boundary Element Method (in Korean)", Journal of the Society of Naval Architecture of Korea, 32(1), pp.42~57 (1995)
- Inglis, R.B., "A Three Dimensional Ship Motion Theory, Comparison between Theoretical Predictions and Experimental Data of the Hydrodynamic Coefficients with Forward Speed", Trans. RINA, 124, pp.141~157 (1982)
- King, B., "Seakeeping Calculations with Forward Speed using Time-Domain Analysis", Proceedings, 17th Symposium on Naval Hydrodynamics, pp.577~596 (1988)
- Lamb, H., "Hydrodynamics", pp.431~ (1932), Cambridge Univ. Press
- Liapis, S., "Seakeeping Computations using Time-Domain Analysis", Proceedings, 4th International Conference on Numerical Ship Hydrodynamics, pp.34~56 (1985)
- Lin, W.M., "Numerical Solutions for Large-Amplitude Ship Motions in the Time Domain", Proceedings 18th Symp. on Naval Hydrodynamics, pp.41~66 (1990)
- Maury, C., "Comparison between Numerical Computations and Experiments for Seakeeping on Ship Models with forward Speed", Journal of Ship Research, 47(4), pp.347~364 (2003)
- Newman, J.N., "Approximation of Green Functions", Wave Asymptotics, Proceedings Fritz Ursell Meeting, pp.107~135 (1992), Cambridge Univ. Press
- Stoker, J.J., "Water Waves", pp.187~196 (1957), Interscience Publishers