|Table of Contents|

Citation:
 Sayed Mohammad Reza Hodaei,Mohammad Reza Chamani,Mohammad Navid Moghim,et al.Experimental Study on Reflection Coefficient of Curved Perforated Plate[J].Journal of Marine Science and Application,2016,(4):382-387.[doi:10.1007/s11804-016-1383-5]
Click and Copy

Experimental Study on Reflection Coefficient of Curved Perforated Plate

Info

Title:
Experimental Study on Reflection Coefficient of Curved Perforated Plate
Author(s):
Sayed Mohammad Reza Hodaei1 Mohammad Reza Chamani1 Mohammad Navid Moghim1 Shahriar Mansoorzadeh2 Abdoreza Kabiri-Samani1
Affilations:
Author(s):
Sayed Mohammad Reza Hodaei1 Mohammad Reza Chamani1 Mohammad Navid Moghim1 Shahriar Mansoorzadeh2 Abdoreza Kabiri-Samani1
1. Department of Civil Engineering, Isfahan University of Technology, Isfahan P.O. Box 84156, Iran;
2. SubSea R&D Center, Isfahan University of Technology, Isfahan P.O. Box 84156, Iran
Keywords:
perforated plate|curved profile|reflection coefficient|wave absorber|regular waves
分类号:
-
DOI:
10.1007/s11804-016-1383-5
Abstract:
A set of experiments is carried out in a towing tank to study the effects of the curvature of perforated plates on the wave reflection coefficient (Cr). The curvature of a perforated plate can be changed by rotating a reference perforated plate about its origin point according to the parabolic equation y=-x2. A plunger-type wave maker is used to generate regular waves. The reflection coefficients are calculated using Goda and Suzuki’s (1976) method. The results are compared with those of vertical or sloped passive wave absorbers. The comparison shows that a perforated plate with a curved profile is highly efficient in terms of reducing the wave reflection coefficient. A correlation is established to estimate the reflection coefficient of curved perforated plates as a function of both flow and geometry characteristics.

References:

Chegini V, 1993. Experimental study of a permeable sloping wave absorber. Research Report, No. 184, The University of New South Wales, Sydney.
Chegini V, 1995. Design of upright perforated energy dissipaters for use in wave basins. PhD thesis, School of Civil Engineering, University of New South Wales, Sydney, Australia.
Goda Y, Suzuki Y, 1976. Estimation of incident and reflected waves in random wave experiments. Proceeding of 15th Coastal Engineering Conference (ASCE), Honolulu, 828-845.
DOI: 10.9753/icce.v15.%p
Jamieson WW, Mansard EPD, 1987. An efficient upright wave absorber. ASCE Specialty Conference on Coastal Hydrodynamics, Newark, 124-139.
Le Méhauté B, 1972. Progressive wave absorber. Journal of Hydraulic Research, 10(2), 153-189.
DOI: 10.1080/00221687209500026
Lean GH, 1967. A simplified theory of permeable wave absorbers. Journal of Hydraulic Research, 5(1), 15-30.
DOI: 10.1080/00221686709500187
Liu Y, Li YC, TengB, 2007. Wave interaction with a perforated wall breakwater with a submerged horizontal porous plate. Journal of Ocean Engineering, 34: 2364-2373.
DOI: 10.1016/j.oceaneng.2007.05.002
Lu CJ, He YS, 1989. Reflection and transmission of water waves by a thin curved permeable barrier. Journal of Hydrodynamics, 3, 77-85.
Ouellet Y, Datta I, 1986. A survey of wave absorbers. Journal of Hydraulic Research, 14(4), 265-280.
DOI: 10.1080/00221688609499305
Rostaminia M, Chegini V, 2008. Study of reflection and transmission coefficients of waves from perforated plates and introducing dimensionless parameter. 7th Int. Conf. Port and Coastal Eng. in Developing Countries (COPEDEC VII), Dubai.
Twu SW, Chieu CC, 2000. A highly wave dissipation offshore breakwater. Journal of Ocean Engineering, 27, 315-330.
DOI: 10.1016/S0029-8018(99)00002-5
Wu J, Wan Z, Fang Y, 1998. Wave reflection by a vertical wall with a horizontal submerges porous plate. Journal of Ocean Engineering, 25(9), 767-779.
DOI: 10.1016/S0029-8018(97)00037-1

Memo

Memo:
Received date:2016-5-31;Accepted date:2016-1-13。
Corresponding author:Mohammad Navid Moghim
Last Update: 2016-11-24