Ship Roll Analysis Using CFD-Derived Roll Damping: Numerical and Experimental Study

Abstract

This study investigates the roll decay of a fishing vessel by experiments and computational fluid dynamics (CFD) simulations. A fishing vessel roll decay is tested experimentally for different initial roll angles. The roll decay is also simulated numerically by CFD simulations and is validated against the experimental results. It shows that the roll damping could be obtained by CFD with high level of accuracy. The linear and nonlinear damping terms are extracted from the CFD roll decay results and are used in a potential-based solver. In this way we are using a hybrid solver that benefits the accuracy of the CFD results in terms of roll damping estimation and the fast computations of the potential-based solver at the same time. This hybrid method is used for reproducing the free roll decays at Fn=0 and also in analyzing some cases in waves. The experiments, CFD and the hybrid parts are described in detail. It is shown that the suggested method is capable of doing the simulations in a very short time with high level of accuracy. This strategy could be used for many seakeeping analyses.

Keywords

Roll decay / Computational fluid ynamics / Experiments / Validation / Parametric rolling / Fishing vessel

References

[1] Aarsaether K, Kristiansen D, Su B, Lugni C (2015) Modelling of roll damping effects for a fishing vessel with forward speed. ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, St. John’s, Newfoundland, Canada, 56598, V011T12A049. https://doi.org/10.1115/OMAE2015-41856

[2] Avalos GO, Wanderley JB, Fernandes AC, Oliveira AC. Roll damping decay of a FPSO with bilge keel. Ocean Engineering, 2014, 87: 111-120

[3] Chen HC, Liu T, Huang ET (2001) Timedomain simulation of large amplitude ship roll motions by a Chimera RANS method. The Eleventh International Offshore and Polar Engineering Conference, Stavanger, Norway, 299–306

[4] Cummins W. The impulse response function and ship motions. Technical report, Schiffstechnik, 1962, 9: 101-109

[5] Faltinsen O (1993) Sea loads on ships and offshore structures, volume 1. Cambridge University Press

[6] Ghamari I. Numerical and experimental study on the ship parametric roll resonance and the effect of anti-roll tank, 2019, Trondheim: Norwegian University of Science and Technology

[7] Ghamari I, Faltinsen OM, Greco M (2015) Investigation of parametric resonance in roll for container carrier ships. ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, St. John’s, Newfoundland, Canada, 56598, V011T12A044. https://doi.org/10.1115/OMAE2015-41528

[8] Ghamari I, Faltinsen OM, Greco M, Lugni, C (2017) Parametric resonance of a fishing vessel with and without anti-roll tank: An experimental and numerical study. ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, Trondheim, Norway, 57731, V07AT06A012. https://doi.org/10.1115/OMAE201762053

[9] Ghamari I, Greco M, Faltinsen OM, Lugni C. Numerical and experimental study on the parametric roll resonance for a fishing vessel with and without forward speed. Applied Ocean Research, 2020, 101: 102272

[10] Ghamari I, Seif M, Mahmoodi H. Numerical and experimental investigation of the roll moment due to free-surface anti-roll tanks. Modares Mechanical Engineering, 2021, 21(9): 641-650

[11] Handschel S, Köllisch N, Soproni J, Abdel-Maksoud M (2012) A numerical method for estimation of ship roll damping for large amplitudes. 29th Symposium on Naval Hydrodynamics, Gothenburg, Sweeden, 26–31

[12] Hasanvand A, Hajivand A. Investigating the effect of rudder profile on 6DOF ship turning performance. Applied Ocean Research, 2019, 92: 101918

[13] Hasanvand A, Hajivand A, Ali NA. Investigating the effect of rudder profile on 6DOF ship course-changing performance. Applied Ocean Research, 2021, 117: 102944

[14] Huang S, Jiao J, Chen C. CFD prediction of ship seakeeping behavior in bi-directional cross wave compared with in unidirectional regular wave. Applied Ocean Research, 2021, 107: 102426

[15] Irkal MA, Nallayarasu S, Bhattacharyya S. CFD approach to roll damping of ship with bilge keel with experimental validation. Applied Ocean Research, 2016, 55: 1-17

[16] ITTC Recommended Procedures and Guidelines (2014) Practical guidelines for ship CFD applications. 7.5-03-02-03

[17] ITTC Recommended Procedures and Guidelines (2017) Uncertainty analysis in CFD verification and validation methodology and procedures. 7.5-03-01-01

[18] Jiao J, Huang S. CFD simulation of ship seakeeping performance and slamming loads in bi-directional cross wave. Journal of Marine Science and Engineering, 2020, 8(5): 312

[19] Jiao J, Huang S, Guedes Soares C. Numerical investigation of ship motions in cross waves using CFD. Ocean Engineering, 2021, 223: 108711

[20] Mancini S, Begovic E, Day AH, Incecik A. Verification and validation of numerical modelling of DTMB 5415 roll decay. Ocean Engineering, 2018, 162: 209-223

[21] Sadeghi M, Hajivand A. Investigation the effect of canted rudder on the roll damping of a twinrudder ship. Applied Ocean Research, 2020, 103: 102324

[22] Stern F, Wilson RV, Coleman HW, Paterson EG. Comprehensive approach to verification and validation of CFD simulations—part 1: methodology and procedures. J. Fluids Eng, 2001, 123(4): 793-802

[23] Wilson RV, Carrica PM, Stern F. Unsteady rans method for ship motions with application to roll for a surface combatant. Computers and Fluids, 2006, 35(5): 501-524

[24] Yang B, Wang ZC, Wu M. Numerical simulation of naval ship’s roll damping based on CFD. Procedia Engineering, 2012, 37: 14-18

[25] Zhu RC, Yang CL, Miao GP, Fan J. Computational fluid dynamics uncertainty analysis for simulations of roll motions for a 3D ship. Journal of Shanghai Jiaotong University (Science), 2015, 20(5): 591-599