EFFICIENCY PHYSICAL MODEL OF WAVE ENERGY DAMPING WITH PERMEABLE BREAKWATER

Juventus Welly Ginting

Abstract


In this research calculates the efficiency of wave energy reduction by using permeable breakwater as an alternative coastal protection. The method used is to do physical modeling in the laboratory to get optimal efficiency. The preparation of the model scenario is done by changing the schematization of the model scenario by changing the permeable brackwater characteristics (width b and height h) to the water level d. and the T wave period. Wave energy is calculated at the location in front of the structure and behind the structure. After calculating the comparison of wave energy in the two locations, it can be obtained the efficiency value of wave energy reduction due to the existence of the structure. The influence of the structure dimension on the reduction of the highest wave energy is obtained with the highest energy reduction value when the condition h / B = 1 where the condition of the structure is the same as the width of the structure. In the conditions of damping the wave energy when compared to the water depth (d) the greatest energy reduction value is at d = 10 cm so that in its utilization as a wave energy damper the height of the structure must be higher than the mean Mean level level (MSL) in the area to be applied structure permeable breakwater will be placed.

Keywords


Physical model; hybrid engineering; permeable breakwater; transmission coefficient; wave reduction

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References


Chanson, H. 1999. Physical modelling of hydraulics. The Hydraulics of Open Channel Flow, 261–283. https://doi.org/http://dx.doi.org/10.1016/B978075065978-9/50021-0

Dean, R. G., & Dalrymple, R. A. 1984. Water Wave Mechanics for Engineers and Scientists. Advanced Series on Ocean Engineering (Vol. 2). https://doi.org/10.1142/9789812385512

De Vriend HJ, v. K. 2012. Building with Nature: Thinking, acting and interacting differently. Ecoshape. The Netherlands: Building with Nature.

Deltares, N. 2012, April 12. Building With Nature For Coastal resilience. Retrieved Agustus 30, 2016, from https://publicwiki.deltares.nl/display/BWN1/Bw N+for+coastal+resilience

Dijkema, K. G. 1988. The use of European marshaccretion. Louisiana: Research Institute for Nature Management.

Hughes, S. A. 1993. Physical Models and Laboratory Techniques in Coastal Engineering, Volume 7 of Advanced series on ocean engineering. Singapore: World Scientific, 1993.

Lucas, P. 2017. Measuring and Modelling Wave Damping by Permeable Groins . Sttuttgart: Master's Thesis Universität Stuttgart Auslandsorientierter Studiengang Wasserwirtschaft .

Munson, B. R., Young, D. F., & Okiishi, T. H. 2003. Fundamenentals of Fluid Mechanics Fourth Edition. Erlangga. Retrieved from https://books.google.co.id/books?id=vzKrt6qd2 a8C

Sabarini, E. K., Astra, A. S., Harjo, A., & Maulana, M. B. 2014. Laporan Kegiatan Keterlibatan Masyarakat Dalam Pengelolaan Kawasan Pesisir dan Laut Studi Kasus: Kawasan Perlindungan Pesisir Desa Timbulsloko, Kecamatan Sayung, Kabupaten Demak . Bogor: Wetlands International Indonesia .

Tonneijck, F. W. 2015. Building with Nature Indonesia Securing Eroding Delta Coastlines. R1.5_R1.6 Design & Engineering plan incl. Hardware plan. Nedherland: Ecoshape.

Winterwerp, J. W. 2014. A sustainable solution for massive coastal erosion in Central Java. Netherlands: Wetlands International.




DOI: https://doi.org/10.32679/jth.v9i1.420

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