Experimental study on reflection coefficient of curved perforated plate |
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| Authors: | Sayed Mohammad Reza Hodaei Mohammad Reza Chamani Mohammad Navid Moghim Shahriar Mansoorzadeh Abdoreza Kabiri-Samani |
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| Institution: | 1.Department of Civil Engineering,Isfahan University of Technology,Isfahan,Iran;2.SubSea R&D Center,Isfahan University of Technology,Isfahan,Iran |
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| 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 (C r ). The curvature of a perforated plate can be changed by rotating a reference perforated plate aboutits origin according to the parabolic equation y=?x 2. 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. |
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