|Table of Contents|

Citation:
 Jikang Chen,Lijia Wang,Wenyang Duan.Side Wall Effects on the Hydrodynamics of a Floating Body by Image Green Function Based on TEBEM[J].Journal of Marine Science and Application,2018,(3):353-361.[doi:10.1007/s11804-018-0046-0]
Click and Copy

Side Wall Effects on the Hydrodynamics of a Floating Body by Image Green Function Based on TEBEM

Info

Title:
Side Wall Effects on the Hydrodynamics of a Floating Body by Image Green Function Based on TEBEM
Author(s):
Jikang Chen1 Lijia Wang2 Wenyang Duan1
Affilations:
Author(s):
Jikang Chen1 Lijia Wang2 Wenyang Duan1
1 College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;
2 Joint Laboratory for Smart Ocean Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
Keywords:
Taylor expansion boundary elementmethodSide wall effectsImage Green functionHydrody namicsSharp corner floating body
分类号:
-
DOI:
10.1007/s11804-018-0046-0
Abstract:
A novel numerical model based on the image Green function and first-order Taylor expansion boundary element method (TEBEM), which can improve the accuracy of the hydrodynamic simulation for the non-smooth body, was developed to calculate the side wall effects on first-order motion responses and second-order drift loads upon offshore structures in the wave tank. This model was confirmed by comparing it to the results from experiments on hydrodynamic coefficients, namely the first-order motion response and second-order drift load upon a hemisphere, prolate spheroid, and box-shaped barge in the wave tank. Then, the hydrodynamics of the KVLCC2 model were also calculated in two wave tanks with different widths. It was concluded that this model can predict the hydrodynamics for offshore structures effectively, and the side wall has a significant impact on the firstorder quantities and second-order drift loads, which satisfied the resonant rule.

References:

Chen X (1994) On the side wall effects upon bodies of arbitrary geometry in wave tank. Appl Ocean Res 16(6):337-345. https://doi.org/10.1016/0141-1187(94)00017-4
Chen J (2015) Numerical simulation on the second-order hydrodynamic problems based on the Taylor expansion boundary element method.PhD thesis. In:Harbin Engineering University. Harbin, China (in Chinese)
Clément A (1979) Contribution à l’étude théorique et expérimentale des mouvements de corps flottants induits par une houle régulière an profondeur finie uniforme. PhD thesis, Université de Nantes, ECN, Nantes, France
Dai Y, Duan W (2008) Potential flow theory of ship motions in waves.National Defense Industry Press, Beijing, pp 63-65 (in Chinese)
Duan W (2012) Taylor expansion boundary element method for floating body hydrodynamics. Proceeding of the 27th International Workshop on Water Waves and Floating Bodies. Copenhagen, Denmark
Duan W, Chen J, Zhao B (2015a) Second-order Taylor expansion boundary element method for the second-order wave radiation problem.Appl Ocean Res 52:12-26. https://doi.org/10.1016/j.apor.2015.04.011
Duan W, Chen J, Zhao B (2015b) Second-order Taylor expansion boundary element method for the second-order wave diffraction problem.Eng Anal Bound Elem 58:140-150. https://doi.org/10.1016/j.enganabound.2015.04.008
Duan W, Chen J, Zhao B (2015c) Calculation of second-order mean drift loads for the deepwater floating body based on the Taylor expansion boundary element method. J Harbin Eng Univ 36(3):302-306. (in Chinese). https://doi.org/10.3969/j.issn.1006-7043.201406006
Kashiwagi M (1988) Theoretical prediction of tank wall effects on hydrodynamic forces acting on an oscillating and translating slender ship. Proceeding of the 4th International Workshop on Water Waves and Floating Bodies, Oslo, Norway, 105-109
Kashiwagi M (1989) 3-D integral-equation method for calculating the effects of tank-wall interference on hydrodynamic forces acting on a ship. J Kansai Society Nav Architects Jpn 212(0):89-101. https://doi.org/10.14856/kansaiks.212.0_89
Kashiwagi M (1991) Radiation and diffraction forces acting on an offshore-structure model in a towing tank. Int J Offshore Polar Eng 1(2):101-107
McIver P (1993) The wave field scattered by a vertical cylinder in a narrow wave tank. Appl Ocean Res 15(1):25-37. https://doi.org/10.1016/0141-1187(93)90030-2
Newman JN(2016)Channel wall effects in radiation-diffraction analysis. Proceeding of the 31st International Workshop on Water Waves and Floating Bodies, Plymouth, MI, USA
Shao Y (2010) Numerical potential-flow studies on weakly-nonlinear wave-body interactions with/without small forward speeds. PhD thesis, Department of Marine Technology, NTNU, Norway
Xia J (2001) Evaluation of the green function for 3-D wave-body interactions in a channel. J Eng Math 40(1):1-16. https://doi.org/10.1023/A:1017533115478
Xu G, Duan W (2010) Numerical investigation of second-order wave diffraction based on the Rankine source method. J Harbin Eng Univ 31(9):1144-1152. (in Chinese). https://doi.org/10.3969/j.issn.1006-7043.2010.09.003
Zhao R, Faltinsen OM (1989) Interaction between current, waves and marine structures, 5th International Conference on Numerical Ship Hydrodynamics, Washington D.C.
Zhu L, Dai Y (1993a) The singular behavior of potential flow around the rectangular corners of floating bodies. Acta Mech Sinica 25(1):116-122. (in Chinese). https://doi.org/10.6052/0459-1879-1993-1-1995-621
Zhu L, Dai Y (1993b) The singular behavior in vicinity of intersection between the body and free surface. Appl Math Mech 14(5):459-468. https://doi.org/10.1007/BF02453767

Memo

Memo:
Received date:2018-6-8;Accepted date:2018-8-10。
Corresponding author:Jikang Chen,chenjikang@hrbeu.edu.cn
Last Update: 2019-03-05