Abstract: To get the accurate wave loads on wharf
composite structure, the wave force on small-scale piles and the
uplift force on lower surface of caisson must be considered. Based
on the Reynolds averaged Navier-Stokes (RANS) equations, the pore
media theory and the volume of fluid (VoF) method, a
three-dimensional numerical model is established. The model has been
developed to simulate wave interaction with a composite structure
including caisson, piles and deck. The numerical results agree very
well with the experimental data on total force. The spatial
distributions of the non-dimensional wave height and the maximum of
wave pressure on surface of composite structure are presented and
discussed. The effects of relative caisson length, relative wave
height and relative caisson height on horizontal wave force are
given. The result indicates that the horizontal wave force achieves
maximum value at the relative caisson length of 0.18 and increases
linearly with the increase of the relative caisson and wave height.
It is proved that the model is an accurate and efficient numerical
tool to investigate different problems of wave-structure
interaction.
GUO Chuan-sheng (郭传胜), ZHANG Ning-chuan (张宁川), PEI Yu-guo (裴玉国)
. Numerical Study of Wave Loads on a Caisson-Pile-Deck Composite
Structure over Permeability
Seabed[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(1)
: 82
-090
.
DOI: 10.1007/s12204-012-1233-9
1 Arai M, Paul U K, Inoue Y. Wave generation in 3D numerical wave
tanks [J]. Journal of the Society of Naval Architects of
Japan, 1993, 174: 253-259.
2 Gueyffier D, Li J, Nadim A, et al. Volume-of-fluid interface
tracking with smoothed surface stress methods for three-dimensional
flows [J]. Journal of Computational Physics, 1999,
152(2): 423-456.
3 Karim M F, Tanimoto K, Hieu P D. Modeling and simulation of wave
transformation in porous structures using VOF based two-phase flow
model [J]. Applied Mathematical Modeling, 2009, 33(1):
343-360.
4 Ren B, Wang Y X. Numerical simulation of random wave slamming on
structures in the splash zone [J]. Ocean Engineering, 2004,
31(5-6): 547-560.
5 Wang Y X. Numerical wave channel with absorbing wave-maker [J].
China Ocean Engineering, 1995, 9(2): 149-160.
6 Hirt C W, Nichols B D. Volume of fluid (VOF) method for the
dynamics of free boundaries [J]. Journal of Computational
Physics, 1981, 39(1): 201-225.
7 Sakakiyama T, Kajima R. Numerical simulation of nonlinear waves
interacting with permeable breakwaters [C]// Proceedings of
the 23rd International Conference on Coastal Engineering. Venice,
Italy: ASCE, 1992: 1517-1530.
8 Guo Chuan-sheng, Zhang Ning-chuan, Liu Zan-qiang, et al.
Experimental study of wave forces on caisson-pile-deck composite
structure [J]. Journal of Waterway and Harbor, 2011,
32(2): 77-85 (in Chinese).
9 van Gent M R A. The modeling of wave action on and in coastal
structures [J]. Coastal Engineering, 1994, 22: 311-339.
10 Hur D S, Lee K H, Yeom G S. The phase difference effects on 3-D
structure of wave pressure acting on a composite breakwater [J].
Ocean Engineering, 2008, 35(17-18): 1826-1841.
11 Hur D S, Mizutani N. Numerical estimation of the wave forces acting
on a three-dimensional body on submerged breakwater [J].
Coastal Engineering, 2003, 47: 329-345.
12 Hieu P D, Tanimoto K. Verification of a VOF-based two-phase flow
model for wave breaking and wave-structure interactions [J].
Ocean Engineering, 2006, 33(11-12): 1565-1588.
