Hydrodynamic characteristics of multihorizontal pulsating circular cylinders in a two-layers fluid of infinite depth

LIN Hong-jun; ZHENG Yong-hong; YOU Ya-ge; SHENG Song-wei; ZHANG Yun-qiu

Article Contents

Article Navigation > Haiyang Xuebao > 2009 > 31(3): 149-157

LIN Hong-jun, ZHENG Yong-hong, YOU Ya-ge, SHENG Song-wei, ZHANG Yun-qiu. Hydrodynamic characteristics of multihorizontal pulsating circular cylinders in a two-layers fluid of infinite depth[J]. Haiyang Xuebao, 2009, 31(3): 149-157.

Citation:

PDF( 1294 KB)

Hydrodynamic characteristics of multihorizontal pulsating circular cylinders in a two-layers fluid of infinite depth

1.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;Key Laboratory of Renewable Energy and Gas Hydrate of Chinese Academy of Sciences, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
2.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;Qingdao Institute of Biomass Energy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 2008-08-18
Rev Recd Date: 2008-12-08

Abstract

Abstract

An analytical method is used to analyze the hydrodynamic characteristics of an array of horizontal pulsating circularcy linders in a two-layers fluid of infinite depth. Under the linear potential theory,analytic expressions for the radiation potential functions are obtained by using the multipole expansion method,and expressions for an added mass and a damping coefficient are defined. After the correct ness of this method was verified by the boundary element method,the hydrodynamic character istics of the array of horizontal circularcy linders are analyzed on two different conditions. It is concluded that the fluid density ratio,the submergence depth,the arrangement and the spacing of cylinders have great impacton the results of the added mass and the damping coefficient.
- two-layers fluid,
- radiation potential,
- added mass,
- damping coefficient

FullText(HTML)

References(12)

References

SIMON M J.Multiple scattering in arrays of axisymmetric wave-energy devices:Part 1.A matrix method using a plane-wave approximation[J].J Fluid Mech,1982,120:1-25.

KAGEMOTO H,YUE D K P.Interactions among multiple three-dimensional bodies in water waves:an exact algebraic method[J].J Fluid Mech,1986,166:189-209.

WILLIAMS A N,ABUL-AZM A G.Hydrodynamic interactions in floating cylinder arrays:II.Wave radiation[J].Ocean Engineering,1989,16(3):217-263.

LINTON C M,EVANS D V.The interaction of waves with arrays of vertical circular cylinders[J].J Fluid Mech,1990,215:549-569.

MCIVER P.Water-wave propagation through an infinite array of cylindrical structures[J].J Fluid Mech,2000,424:101-125.

KAGEMOTO H,MURAL M,SAITO M,et al.Experimental and theoretical analysis of the wave decay along a long array of vertical cylinders[J].J Fluid Mech,2002,456:113-135.

沈永明,郑永红,吴朝安.斜向波与任意多个长水平圆柱的相互作用[J].中国科学,2007,37(1):107-126.

OSBORNE A R,BURCH T L Internal solitons in Andaman Sea[J].Science,1980,208:451-460.

EBBESMEYER C C,COOMES C A,HAMILTON R C,et al.New observation on internal wave(solitons) in the South China Sea using an acoustic Doppler current profiler[G]//Marine Technology Society 91 Proceedings.New Orleans:Marine Technology Society,1991:165-175.

李家春.水面下的波浪--海洋内波[J].力学与实践,2005,27(2):1-6.

LINTON C M,MCLVER M.The interaction of waves with horizontal cylinders in two-layer fluids[J].J Fluid Mech,1995,304:213-229.

FENG B,ZHENG Y H,YOU Y G,et al.Interaction of linear waves with infinitely long horizontal cylinders studied by boundary element method[J].China Ocean Engineering,2007,21(2):317-330.

Relative Articles

Supplements(0)

Cited By

Proportional views