TY - JOUR
T1 - Interaction of Waves with a Free-Surface Semicircular Breakwater: Experimental Investigation and Empirical Models
AU - Teh, Hee Min
AU - Faris Ali Hamood Al-Towayti, null
AU - Venugopal, Venki
AU - Zhe Ma, null
N1 - Funding Information:
Ministry of Higher Education Malaysia (KPT), Fundamental Research Grant Scheme (FRGS/1/2018/TK10/UTP/02/8), and YUTP Board, YUTP-PRG (015PBC-022).
Funding Information:
The authors would like to thank Ministry of Higher Education (MOE), Malaysia for providing financial assistance under the Fundamental Research Grant Scheme. (FRGS/1/2018/TK10/UTP/02/8), and YUTP Board for funding this paper through YUTP-PRG (015PBC-022).
Publisher Copyright:
© 2023 by the authors.
PY - 2023/7
Y1 - 2023/7
N2 - This experimental study investigated the hydrodynamic performance of the first free-surface semicircular breakwater supported on piles under regular waves. The research focused on SCB models with porosity levels of 0%, 9%, 18%, and 27%. Experimental tests were conducted in a wave flume to evaluate the transmission (CT), reflection (CR), and energy dissipation (CL) coefficients of the SCB models. Wave disturbance coefficients (CF) in front of the breakwater and within the breakwater chamber (CC) were also examined. Horizontal wave loading was measured using normalized force coefficients (Fn), including force coefficients of wave crests (Fn,c) and wave troughs (Fn,t). Empirical formulas were proposed to provide a quick estimate of the hydrodynamic performance, showing good agreement with the measured data. The findings highlight the impact of varying porosity levels on wave attenuation, with the impermeable SCB model (0% porosity) exhibiting superior performance compared to the perforated SCB models. This research contributes valuable insights into optimizing SCB model design and enables efficient estimation of its hydrodynamic performance under regular wave conditions. The results provide valuable guidance for the design and implementation of SCB structures, enhancing their effectiveness in wave attenuation applications.
AB - This experimental study investigated the hydrodynamic performance of the first free-surface semicircular breakwater supported on piles under regular waves. The research focused on SCB models with porosity levels of 0%, 9%, 18%, and 27%. Experimental tests were conducted in a wave flume to evaluate the transmission (CT), reflection (CR), and energy dissipation (CL) coefficients of the SCB models. Wave disturbance coefficients (CF) in front of the breakwater and within the breakwater chamber (CC) were also examined. Horizontal wave loading was measured using normalized force coefficients (Fn), including force coefficients of wave crests (Fn,c) and wave troughs (Fn,t). Empirical formulas were proposed to provide a quick estimate of the hydrodynamic performance, showing good agreement with the measured data. The findings highlight the impact of varying porosity levels on wave attenuation, with the impermeable SCB model (0% porosity) exhibiting superior performance compared to the perforated SCB models. This research contributes valuable insights into optimizing SCB model design and enables efficient estimation of its hydrodynamic performance under regular wave conditions. The results provide valuable guidance for the design and implementation of SCB structures, enhancing their effectiveness in wave attenuation applications.
KW - biological production
KW - hydrodynamic performance
KW - pile foundation
KW - Porosity
KW - wave attenuation
KW - porosity
UR - http://www.scopus.com/inward/record.url?scp=85166235408&partnerID=8YFLogxK
U2 - 10.3390/jmse11071419
DO - 10.3390/jmse11071419
M3 - Article
SN - 2077-1312
VL - 11
JO - Journal of Marine Science and Engineering
JF - Journal of Marine Science and Engineering
IS - 7
M1 - 1419
ER -