Numerical research of the viscous effect of the bigle keel on the damping moment

• Autorzy: Deng R. , Duan W. , Ma S. , Ma Y.
• Języki publikacji: EN

Abstrakty

EN

Bilge keels are effective passive devices in mitigating the rolling motion, and the usage of them covers almost all the sea going vessels. This paper focuses on the viscous effect of the bilge keel, ignored the effect of the free surface and the effect of the ship hull, for the general viscous characteristic of the bilge keel. In order to investigate the viscous effect of the bilge keel on the total damping moment, a special 2 dimensional numerical model, which includes a submerged cylinder with and without bilge keels, is designed for the simulation of forced rolling. Three important factors such as bilge keels width, rolling periods, as well as maximal rolling angles are taken into account, and the viscous flow field around the cylinder is simulated by some codes based on the viscous method in different conditions, in which the three factors are coupled. Verification and validation based on the ITTC method are performed for the cylinder without bilge keels in the conditions of different rolling periods and maximal rolling angles. The primary calculation of damping moment induced by the cylinder with 0mm, 4mm, and 10mm width bilge keels shows some interesting results, and a systematic analysis is conducted. The analysis of the damping moment components suggests there is phase difference between the damping moment induced by the cylinder and the bilge keels, and when the bilge keels width reaches a special size, the total damping moment is mitigated. The calculation of the damping moments induced by the cylinder with some larger bilge keels are also performed, and the results suggest that, the damping moment induced by the bilge keels is increased rapidly and becomes the dominant part in the total damping moment while the width of the bilge keels are increased, but the damping moment induced by the cylinder is not changed significantly. Some illustration of the vortices formation and shedding is included, which is the mechanism of the damping moment caused by the bilge keels. The present work shows an interesting problem, and it is useful for the bilge keel design

• Wydawca: -
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: 22
• Numer: Special Issue S1
• Opis fizyczny: p.67-74,fig.,ref.

Twórcy

autor

Deng R.

• Shipbuilding Engineering College, Harbin Engineering University, No.145 Nantong Street, 150001 Harbin, China

autor

Duan W.

• Shipbuilding Engineering College, Harbin Engineering University, No.145 Nantong Street, 150001 Harbin, China

autor

Ma S.

• Shipbuilding Engineering College, Harbin Engineering University, No.145 Nantong Street, 150001 Harbin, China

autor

Ma Y.

• Shipbuilding Engineering College, Harbin Engineering University, No.145 Nantong Street, 150001 Harbin, China

Bibliografia

• 1. Chakrabarti, S. Empirical calculation of roll damping of ships and barges, Ocean Engineering, Vol. 28, pp. 915-932, 2001.
• 2. Cueva, M, Hansen, AS, Silva, JLB, Faria, F, Morato, A. HYDRODYNAMICS OF AN INSTALATION BARGE WITH BILGE KEELS AND STINGER, 29th ASME International Conference on Ocean, Offshore and Arctic Engineering, Shanghai, PEOPLES R CHINA, JUN 06-11, 2010.
• 3. D. Mylonas, P. Sayer. The hydrodynamic flow around a yacht keel based on LES and DES, Ocean Engineering, Vol. 46, pp. 18-32, 2012.
• 4. Dai, CM, Miller, RW, Percival, AS. HYDRODYNAMIC EFFECTS OF BILGE KEELS ON THE HULL FLOW DURING STEADY TURNS, OMAE, Vol. 5, pp. 571-580, 2009.
• 5. E.P. Bangun, C.M. Wang, T. Utsunomiya. Hydrodynamic forces on a rolling barge with bilge keels, Applied Ocean Research, Vol. 32, pp. 219-232, 2010.
• 6. Froude, W. On the Rolling of Ships, Ph.D. thesis, Royal Institute of Naval Architects, 1861.
• 7. H.H. Chun, S.H. Chun, S.Y. Kim. Roll damping characteristics of a small fishing vessel with a central wing, Ocean Engineering, Vol. 28, pp. 1601-1619, 2001.
• 8. IKEDA Y., HIMENO Y, TANAKA N. On eddy making component of roll damping force on naked hull, Journal of the Society of Naval Architects of Japan, Vol. 142, pp. 54-64, 1977.
• 9. ITTC QM Procedure (2002). 7.5- 03- 01- 01.
• 10. ITTC QM Procedure (2002). 7.5- 03- 02- 01.
• 11. Kinnas, S. A., Yu, Y. H., Kacham, B., Lee, H. A Model of the Flow Around Bilge Keels of FPSO Hull Sections Subject to Roll Motions, Proceedings of the 12th Offshore Symposium, Soc. Naval Arch. Mar. Engr.. Houston TX., 2003.
• 12. Kinnas, S. A. FPSO Roll Motions, Technical Report, Minerals Mgt. Service, USA, 2005.
• 13. Kwang Hyo Jung, Kuang-An Chang, Erick T. Huang. Twodimensional flow characteristics of wave interactions with a free-rolling rectangular structure, Ocean Engineering, Vol. 32, pp. 1-20, 2005.
• 14. LI Yi-le, LIU Ying-zhong, MIAO Guo-ping. Potential flow solution using higher order boundary element method with Rankine source, Journal of Hydrodynamics(Ser. A), Vol. 14, no 1, pp. 80-89, 1999.
• 15. LUO Min-li, MAO Xiao-fei, WANG Xiao-xia. CFD based hydrodynamic coefficients calculation to forced motion of two-dimensional section, CHINESE JOURNAL OF HYDRODYNAMICS, Vol. 26, no. 4, pp. 509-515, 2011.
• 16. M. Eissa, A.F. El-Bassiouny. Analytical and numerical solutions of a non-linear ship rolling motion, Applied Mathematics and Computation, Vol. 134, pp. 243-270, 2003.
• 17. Maimun, A. Priyanto, K.S. Wong, M. Pauzi, M. Rafiqul. Effects of side keels on patrol vessel safety in astern waves, Ocean Engineering 2009; 36: 277-284.
• 18. Pablo M. Carrica, Hamid Sadat-Hosseini, Frederick Stern. CFD analysis of broaching for a model surface combatant with explicit simulation of moving rudders and rotating propellers, Computers & Fluids, Vol. 53, pp. 117-132, 2012.
• 19. PU Jin-yun, ZHANG Wei-kang, JIN Tao. Melinikov’s method for non-liner rolling motions of a flooded ship, Journal of Hydrodynamics(Ser. B), Vol. 17, no. 5, pp. 580584, 2005.
• 20. Qiuxin Gao, DracosVassalos. Numerical study of damage ship hydrodynamics, Ocean Engineering, Vol. 55, pp. 199205, 2012.
• 21. Robert V. Wilson, Pablo M. Carrica, Fred Stern. Unsteady RANS method for ship motions with application to roll for a surface combatant, Computers & Fluids, Vol. 35, pp. 501-524, 2006.
• 22. Souza Jr., J.R., Fernandes, A.C., Masetti, I.Q., da Silva, S., Kroff, S.A.B.. Nonlinear rolling of an FPSO with largerthan-usual bilge keels, Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering – OMAE, Lisbon, Portugal; July 5, 1998 - July 9, 1998.
• 23. Stern F, Wilson R, Coleman H, Paterson E. Comprehensive approach to verification and validation of CFD simulations—Part 1: Methodology and procedures, ASME J Fluids Eng., Vol. 123, pp. 793-802, 2001.
• 24. Tanaka, N., Hishida, T. A Study on the Bilge Keels. Part 1. Two Dimensional Model Experiments, J. Soc. Nav. Archit. Jpn., Vol. 101, pp. 99-105, 1957.
• 25. Tanaka, N. A Study on the Bilge Keels. Part 2. Full Sized Model Experiment, J. Soc. Nav. Archit. Jpn., Vol. 103, pp. 69-73, 1958.
• 26. Tanaka, N. A Study on the Bilge Keels. Part 3. The Effect of the Ship Form and the Bilge Keel Size on the Action of the Bilge Keel, J. Soc. Nav. Archit. Jpn., Vol. 105, pp. 27-32, 1959.
• 27. Tanaka, N. A Study on the Bilge Keels. Part 4. On the Eddy making Resistance to the Rolling of a Ship Hull, J. Soc. Nav. Archit. Jpn., Vol. 109, pp. 205-212, 1960.
• 28. Thiagarajan, Krish P., Braddock, Ellen C. Influence of Bilge Keel Width on the Roll Damping of FPSO, 24th International Conference on Offshore Mechanics and Arctic Engineering, Halkidiki, GREECE; JUN 12-17, 2005.
• 29. Vaidhyanathan, M. Separated Flows Near a Free Surface. Ph.D. thesis, University of California, Berkeley, CA., 1993.
• 30. Wilson R, Stern F, Coleman H, Paterson E. Comprehensive approach to verification and validation of CFD simulations—Part 2: Application for RANS simulation of a cargo/container ship, ASME J Fluids Eng., Vol. 123, pp. 803-810, 2001.
• 31. Wilson R, Shao J, Stern F. Discussion: Criticisms of the correction factor verification method, ASME J Fluids Eng., Vol. 125, pp. 732-733, 2003.
• 32. YANG Bo, WANG Zuo-chao, WU Ming. Numerical Simulation of Naval Ship’s Roll Damping Based on CFD, Procedia Engineering, Vol. 37,pp. 14-18, 2012.
• 33. YANG Chun-lei, ZHU Ren-chuan, MIAO Guo-ping, FAN Ju. Numerical simulation of rolling for 3-D ship with forward speed and nonlinear damping analysis, Journal of Hydrodynamics(Ser. B), Vol. 25, no. 1, pp. 148-155, 2013.
• 34. Yeung, R.W., Liao, S.-W., Roddier, D. Hydrodynamic coefficients of rolling rectangular cylinders, Eighth International Journal of Offshore and Polar Engineers, Vol. 8, pp. 242-250, 1998.
• 35. Yeung, R., Roddier, D., Alessandrini, B., Gentaz, L., and Liao, S.-W. On Roll Hydrodynamics of Cylinders Fitted With Bilge Keels, Proceedings 23rd Symposium Naval Hydrodynamics, Washington, DC., 2000.

Identyfikatory

DOI

10.1515/pomr-2015-0035