Laboratory Study at the Impact of Coastal Green Belt on Wave Attenuation

In this study، the effect of vegetation on the reduction of the transmitted wave height and beach vegetation to absorb the force of the waves has been studied. Tests for the two layouts with rectangular and triangular spaced 5 × 5 and 10 × 10 cm، 3-state within 10، 30 and 40 cm، 5 sloping beach.، 3، 5، 7 and 10% and 5 wave height of 5/1، 3، 4، 6 and 8 cm were used. In total، 325 different cases have been investigated. 25 of them were been done in no vegetation condition. Dynamic pressure is measured at several points on the coast by a pressure transducer. The force exerted by the waves on the beach of the fuselage has been measured using electronically force meters (load cell) installed in the part of the flume is made movable. The results show that the effect is more rectangular than triangular arrangement of the reduction in wave height.