@article{Kakinuma_Ohishi_Nakamura_2011, title={SEEPAGE FLOW IN A BREAKER ZONE}, volume={1}, url={https://icce-ojs-tamu.tdl.org/icce/article/view/1283}, DOI={10.9753/icce.v32.currents.54}, abstractNote={Seepage velocities in several breaker zones were measured with dye for visualization. Pressure gauges were also installed to obtain pore water pressure. Three cases of different incident-wave periods were treated in laboratory experiments. The time-averaged pore water pressure was higher near the shoreline, resulting in the seepage flow, the maximum velocity of which was larger as the incident-wave period was longer, generally moving from onshore to offshore. The penetrated water flowed out from the permeable seabed at a bar top or on the rather offshore side of the bar top if a bar was developed remarkably. The pore water pressure in the breaker zone showed time variation depending on the wave phases including wave breaking and bore propagation. There was a phase when the pore water pressure was locally low below the bar.}, number={32}, journal={Coastal Engineering Proceedings}, author={Kakinuma, Taro and Ohishi, Shizuka and Nakamura, Kazuo}, year={2011}, month={Jan.}, pages={currents.54} }