Experimental study on the wave dissipation performance of a perforated semi-circular floating breakwater

  • Vu Minh Tuan Faculty of Hydraulic Engineering, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Bach Duong Faculty of Hydraulic Engineering, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Vu Quoc Hung Faculty of Hydraulic Engineering, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Nguyen Duc Manh Faculty of Hydraulic Engineering, Hanoi University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Nguyen Manh Linh Key Laboratory of River and Coastal Engineering, Vietnam Academy for Water Resources, Dong Da district, Hanoi, Vietnam
Keywords: perforated semi-circular floating breakwater, experimental study, wave transmission, wave reflection, energy dissipation

Abstract

A new type of floating breakwater (FB) is proposed in this paper. Its hydrodynamic performance has been tested. The structure of the newbreakwater named perforated semi-circular floating breakwater (SCFB) consists of two parts: a main body of a box-shaped base block and a semi-circular upper structure is perforated for the purpose of absorbing breaking and overtopping wave energy. A series of experiments were carried out on the new floating breakwater and traditional box floating breakwater to compare their performances. A two-dimensional wave flume was used in the experiment; the incident, transmitted, and reflected waves from the floating breakwaters were measured. Results showed that the new floating breakwater had a better performance than the traditional box floating breakwater: wave transmission was significantly reduced by the semi-circula  upper part, especially for high waves.

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Published
29-06-2022
How to Cite
Tuan, V. M., Duong, B., Hung, V. Q., Manh, N. D., & Linh, N. M. (2022). Experimental study on the wave dissipation performance of a perforated semi-circular floating breakwater. Journal of Science and Technology in Civil Engineering (STCE) - HUCE, 16(3), 59-70. https://doi.org/10.31814/stce.huce(nuce)2022-16(3)-05
Section
Research Papers