Abstract
The maximum vertical distance a wave may travel up a phics. coastal structure, known as the wave sunup height, is an important factor in determining the crest elevation of a revetment. When the wave sunup height exceeds the crest height of the structure, the overtopping rate becomes an additional design factor of great significance for coastal structures. Computations of wave sunup heights and overtopping rates are currently based upon empirical formulations and physical model studies that do not include the effects of strong onshore winds associated with the storms considered in the design conditions. The present study attempts to quantify the effects of onshore wind on irregular wave sunup heights and overtopping rates on revetments for various wind velocities in a two dimensional wind-wave flume. Experiments were conducted for a range of incident spectral wave conditions: and 1 :5 sloped revetments', smooth and rough surfaces', various crest elevations', and wind velocities ranging from zero up to 1 4 m/s. Comparisons can be made to earlier regular wave tests by Zhang et al. (1995). With the addition of winds, significant increases in wave sunup and overtopping were observed for high wind velocities. Insights were gained into the wind's transforming effects exerted On the waves and how those transformations can affect sunup. Scaling these wind effects to prototype
Cinotto, Charles Matthew (1998). Irregular wave runup and overtopping of revetments in the presence of wind. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1998 -THESIS -C524.