Tropical Geography

Influence of Intermittent Submerged Breakwater on the Hydrodynamic Impacts of Infragravity Waves on Fringing Reef

Renshi Yu, Ke Qu, Wenjun Nie

Tropical Geography, DOI: 10.13284/j.cnki.rddl.20250105

测点编号	测点位置/m	测点编号	测点位置/m
WG₁	18.29	WG₈	26.06
WG₂	18.59	WG₉	26.765
WG₃	18.89	WG₁₀	27.845
WG₄	22	WG₁₁	28.74
WG₅	23	WG₁₂	29.68
WG₆	24.535	WG₁₃	30.56
WG₇	25.28	WG₁₄	—

Table 1 Position of measuring points

Other figure/table from this article

Fig.1 Layout of wave flume(m)
Fig.2 Side view and top view of discontinuous submerged breakwater
Table 2 Experimental condition setting table
Fig.3 Time history curves of free surface at different measuring points
Fig.4 Comparisons of the time series of wave runup heights (a) and runup spectra (b)
Fig.5 Spectral energy distribution cloud chart
Fig.6 Distribution of (a)infragravity wave height(H_IG ), (b)short-wave wave height(H_SS ) and (c)wave set-up(η_i ) along the reef with or without submerged breakwater under standard conditions
Table.3 Significance analysis of water increase and wave run-up on reef flat with or without intermittent submerged breakwater
Fig.7 Distribution of infragravity wave height(H_IG ), short-wave wave height(H_SS ) along the reef under different effective wave heights(H_S ), reef water depths(d), discontinuous widths(w),and spectral peak periods(T_P ) with submerged breakwater topography
Fig.8 Comparison of 2 % maximum climbing height(R _2%) and maximum water increase(η _max) under different effective wave heights(H_S ), reef water depths(d), discontinuous widths(w),and spectral peak periods(T_P )
Fig.9 Comparison of experimental data and calculated values of H_SS (a) _, H_IG (b) and wave setup(c) at each measuring point
Fig.10 The distribution of the average velocity of each measuring point along the water depth
Fig.11 The average velocity cloud diagram along the reef (top view)