STUDIES, EVALUATION AND ESTIMATION OF WAVE CHARACTERISTICS EFFECT FOR DETERMINING OVERTOPPING OF IRREGULAR WAVES AT RESHAPING BREAKWATERS

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SHAFEI FAR M.; SHIRIAN N.; AGHTOUMAM P.; CHEGINI V.

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Journal: Year:2007 | Volume:19 | Issue:3 (73 IN NATURAL RESOURCES) Page(s): 177-188

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Title

STUDIES, EVALUATION AND ESTIMATION OF WAVE CHARACTERISTICS EFFECT FOR DETERMINING OVERTOPPING OF IRREGULAR WAVES AT RESHAPING BREAKWATERS

Author(s)

SHAFEI FAR M. | SHIRIAN N. | AGHTOUMAM P. | CHEGINI V. | Issue Writer Certificate

Keywords

EXPERIMENTAL MODELINGQ4

IRREGULAR WAVESQ3

RESHAPING BREAKWATERSQ3

RUBBLE MOUNDQ3

WAVE OVERTOPPINGQ3

Abstract

In this research the effect of irregular wave’s overtopping at the reshaping rubble – mound breakwaters were investigated. Reshaping breakwater is a kind of new breakwaters, which its initial profile is changed to a (S) shaped one after impacting of waves. Therefore, the relations related to overtopping on conventional breakwaters cannot be used for this type of structure. Method of research was based on EXPERIMENTAL MODELING. Experiments were done for multiple cross sections of RESHAPING BREAKWATERS with three different slopes in the Soil Conservation and Watershed Management Research Institute (SCWMRI) wave Flume, during 2003 to 2004.The wave flume equipped with a modern DHI wave generation system, which contains paddle, power pack, hardware and software divisions. The hydraulic response that mentioned above, were investigated by changing the wave parameters such as significant wave height, mean and peak wave period and storm duration on the natural repose of materials, equal to 1:1.25. JONSWAP wave spectrum was used in all experiments. The Armored layer materials were included in one grading class (Dn85A/Dn15A= 1.82). In order to changing wave properties, 50 tests were done with 500 to 3000 waves in this research. A small tank was installed behind of the model to measuring the volume of WAVE OVERTOPPING in each experiment. Results of this research were shown as non-dimensional design charts and graphs and new prediction relation. The experimental results were plotted as graphs showing the mean discharge versus the efficient parameters. An improved and new fit to data can be achieved using simple linear regression which results in some new empirical equations which has been presented in this research.

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APA: Copy

SHAFEI FAR, M., SHIRIAN, N., AGHTOUMAM, P., & CHEGINI, V.. (2007). STUDIES, EVALUATION AND ESTIMATION OF WAVE CHARACTERISTICS EFFECT FOR DETERMINING OVERTOPPING OF IRREGULAR WAVES AT RESHAPING BREAKWATERS. PAJOUHESH-VA-SAZANDEGI, 19(3 (73 IN NATURAL RESOURCES)), 177-188. SID. https://sid.ir/paper/20213/en

Vancouver: Copy

SHAFEI FAR M., SHIRIAN N., AGHTOUMAM P., CHEGINI V.. STUDIES, EVALUATION AND ESTIMATION OF WAVE CHARACTERISTICS EFFECT FOR DETERMINING OVERTOPPING OF IRREGULAR WAVES AT RESHAPING BREAKWATERS. PAJOUHESH-VA-SAZANDEGI[Internet]. 2007;19(3 (73 IN NATURAL RESOURCES)):177-188. Available from: https://sid.ir/paper/20213/en

IEEE: Copy

M. SHAFEI FAR, N. SHIRIAN, P. AGHTOUMAM, and V. CHEGINI, “STUDIES, EVALUATION AND ESTIMATION OF WAVE CHARACTERISTICS EFFECT FOR DETERMINING OVERTOPPING OF IRREGULAR WAVES AT RESHAPING BREAKWATERS,” PAJOUHESH-VA-SAZANDEGI, vol. 19, no. 3 (73 IN NATURAL RESOURCES), pp. 177–188, 2007, [Online]. Available: https://sid.ir/paper/20213/en

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