To confirm the validity of this method, not only numerical calculations, laboratory experiments but also a prototype test in an actual bay were carried out. As a result of these experiments, it becomes clear that it is possible to produce and control the tidal residual current and to activate tidal exchange
In addition, by applying the similar principle to wave motion we succeeded inproducing and controlling a wave-induced residual current near seabed, whichcan control sediment transport in a coastal area. Through numerical and fieldexperiments, we have confirmed that this BANK method is an effectivecountermeasure against beach erosion and burial of passage by sedimentation.