Numerical simulation of a planing vessel at high speed

Abstract

Planing vessels are applied widely in civil and military situations. Due to their high speed, the motion of planning vessels is complex. In order to predict the motion of planning vessels, it is important to analyze the hydrodynamic performance of planning vessels at high speeds. The computational fluid dynamic method (CFD) has been proposed to calculate hydrodynamic performance of planning vessels. However, in most traditional CFD approaches, model tests or empirical formulas are needed to obtain the running attitude of the planing vessels before calculation. This paper presents a new CFD method to calculate hydrodynamic forces of planing vessels. The numerical method was based on Reynolds-Averaged Navier-Stokes (RANS) equations. The volume of fluid (VOF) method and the six-degrees-of-freedom equation were applied. An effective process was introduced to solve the numerical divergence problem in numerical simulation. Compared with experimental results, numerical simulation results indicate that both the running attitude and hydrodynamic performance can be predicted well at high speeds.

Keywords

planing vessel / RANS equations / running attitude / six degrees of freedom equations / VOF

References

[1] Arai M., Cheng L.L., Inoue Y. A computing method for the analysis of water impact of arbitrary shaped bodies. Journal of the Society of Naval Architects of Japan, 1994, 176: 233-239

[2] Azcueta R (2003a), Steady and unsteady RANSE simulations for planing RAFTS. 7th Conference on Fast Sea Transportation, FAST’03, Abano Terme, Italy.

[3] Azcueta R., Caponnetto M., Soding H. Motion simulations for planing boats in waves. Ship Technology Research, 2003, 4: 182-198

[4] Battistin D, Iafrati A. (2003). A numerical model for hydrodynamic of planing surfaces. Proc.7th Int. Conf. Fast Sea Transportation FAST2003, Nanjing, 33–38.

[5] Cao H. The Computation and research on resistance of planing craft based on the software FLUENT, 2008, Harbin: Harbin Engineering University, 44-53

[6] Dong W., Yao G. Experimental study on longitudinal motion of deep-V-shaped planing craft. Ship Engineering, 2004, 26(2): 14-16

[7] Caponnetto M (2001). Practical CFD simulations for planing hulls. Proc. of Second International Euro Conference on High Performance Marine Vehicles, Hamburg, 128–138.

[8] Dong W., Huang X., Liu Z. Experimental determination of roll damping of deep-Vee planing craft. Journal of Naval University of Engineering, 2004, 16(4): 26-29

[9] Kihara H (2006). A computing method for the flow analysis around a prismatic planing-hull. 7th international conference on high performance marine vehicles. Yokosuka, Australian, 262–272.

[10] Lewis SG, Hudson DA, Turnock SR, Blake JIR, Shenoi RA (2006). Predicting motions of high speed RIBs: A comparison of non-linear strip theory with experiments. Proceedings of the 5th International Conference on High Performance Marine Vehicles (HIPER’06), Launceston, Australia, 210–224.

[11] Ma S. 2.5D Computational method for ship motions and wave loads of high speed ships, 2005, Harbin: Harbin Engineering University, 16-62

[12] Qiu Wei, Yang Qingyong, Peng Heather (2008). Slamming force on a planing hull: Comparison between 3D and 2D solutions. Proceedings of the 18th International Offshore and Polar Engineering Conference, Vancouver, Canada.

[13] Shen Hailong (2009). Research on the unsteady interaction between ship hull and energy-saving appendage and propeller. PhD thesis, Harbin Engineering University, 83–85.

[14] Song W, Arai M, Maruo H (1996). Nonlinear free surface flow, numerical approach to water entry of wedges and experimental appraisal. 19th Information and communication Technologies Association of Manitoba, Tokyo, 378–567.

[15] Sun, Hui, Faltinsen OM (2010). Numerical study of planing vessels in waves. 9th International Conference on Hydrodynamics, Shanghai, 451–458.

[16] Wang F. The analysis of computational fluid dynamics-the theory and applications of CFD software, 2004, Beijing, China: Tsinghua University Press, 126-130

[17] Wang Zhaoli, Niu Jianglong, Qin Zaibai, Pang Yongjie (2009). The computation resistance of planing craft based on the CFD techniques. 14th Conference on China Ocean Engineering, Hohhot, 309–315.

[18] Yang S., Gao L. Experimental study on resistance performance of an 11.8 meter gliding-hydrofoil craft. Journal of Jiangsu University of Science and Technology (Natural Science Edition), 2008, 22(2): 6-10

[19] Zhao R, Faltinsen O, Aarsnes J (1996). Water entry of arbitrary two-dimensional section with and without flow separation. Proc. 21th Symp. on Naval Hydrodynamics, SoerTrondelag, Norway, 408–423.