Experimental Investigation into Low-Velocity Water Entry of Cylinder Structure

doi:10.1007/s12204-015-1680-1

Abstract

Abstract:

The process of low-velocity water entry is utilized on a large scale for the military and engineering purposes. However, there are rarely systematic experimental investigations into the low-velocity water entry of cylinder structure for reference. In order to obtain typical phenomena and relevant laws, we design a set of experimental facilities with adjustable parameters and better repeatability to study this process with a high-speed photography system. The influences of cylinder radius, initial velocity and entry angle on the process of low-velocity water entry are tested. Results show that six typical phases exist in this process: structure submersion, necking, cavity formation, cavity abscission, spray at the free surface and jet formation. Three factors mentioned above are key parameters and influence the process in different degrees, and some laws obtained in this paper have a reasonable agreement with the theoretical results. Our results provide references for the relevant numerical researches and engineering applications.

Key words: low-velocity water entry|cylinder structure|cylinder radius|initial velocity|entry angle

CLC Number:

U 661.1

Wen-hua CHU, Feng FENG, Jian ZHANG. Experimental Investigation into Low-Velocity Water Entry of Cylinder Structure[J]. Journal of Shanghai Jiao Tong University(Science), 2015, 20(6): 703-712.

References 14

[1]	Abelev A V, Valent P J, Holland K T.Behavior of a large cylinder in free-fall through water[J]. IEEE Journal of Oceanic Engineering, 2007, 32(1): 10-20.
[2]	Seddon C M, Moatamedi M.Review of water entry with applications to aerospace structures[J]. International Journal of Impact Engineering, 2006, 32: 1045-1067.
[3]	Huera-Huarte F J, Jeon D, Gharib M. Experimental investigation of water slamming loads on panels[J]. Ocean Engineering, 2011, 38(11-12): 1347-1355.
[4]	Gekle S, Gordillo J M, van der Meer D, et al. High-speed jet formation after solid object impact[J]. Physical Review Letters, 2009, 102(3): 034502.
[5]	Mei X M, Liu Y M, Yue D K P. On the water impact of general two-dimensional sections[J]. Applied Ocean Research, 1999, 21: 1-15.
[6]	Qin Z, Batra R C.Local slamming impact of sandwich composite hulls[J]. International Journal of Solids and Structures, 2009, 46(10): 2011-2035.
[7]	Tveitnes T, Fairlie-Clarke A C, Varyani K. An experimental investigation into the constant velocity water entry of wedge-shaped sections[J]. Ocean Engineering, 2008, 35: 1463-1478.
[8]	Panciroli R, Abrate S, Minak G,et al.Hydroelasticity in water-entry problems: Comparison between experimental and SPH results[J]. Composite Structures, 2012, 94: 532-539.
[9]	Yettou E, Esrochers A, Champoux Y.A new analytical model for pressure estimation of symmetrical water impact of a rigid wedge at variable velocities[J]. Journal of Fluids and Structures, 2007, 23(3): 501-522.
[10]	Zhang A M, Yang W S, Huang C,et al.Numerical simulation of column charge underwater explosion based on SPH and BEM combination[J]. Computers & Fluids, 2013, 71: 169-178.
[11]	Zhang A M, Ni B Y.Three-dimensional boundary integral simulations of motion and deformation of a bubble with viscous effects[J]. Computers & Fluids, 2014, 92: 22-33.
[12]	Zhang A M, Wang S P, Huang C,et al.Influences of initial and boundary conditions on underwater explosion bubble dynamics[J]. European Journal of Mechanics B/Fluid. 2013, 42(2): 69-91.
[13]	Sun H, Faltinsen O M.Water impact of horizontal circular cylinders and cylindrical shells[J]. Applied Ocean Research, 2006, 28: 299-311.
[14]	Rabiee A, Alishahi M M, Emdad H,et al.Experimental investigation of bounce phenomenon[J]. Scientia Iranica B, 2011, 18(3): 416-422.

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