Feasibility of Modeling Run-Up Effects of Dispersive Water Waves

摘要

Studied were made in a laboratory test basin to determine the feasibility of modeling run-up effects of explosively generated water waves on beach and waterfront structures. Results were compared with (i) analytically derived predictions, and (ii) wave measurements (but not run-up) made in the ocean with high-energy (HE) explosives as the generating source. The test basin is 92 feet by 94 feet in size with 1:5, 1:13.6 and 1:5 sand beaches on three sides and on the fourth a 14-foot-diameter semi-paraboloidal plunger which by sudden plunge or retraction generates dispersive waves with dominant period of 2 seconds, height of 0.2 feet, and length of 20 feet in water 2-1/2 feet deep. It was found that wave motions are (i) predicted well by Green's Law, as modified for dispersive waves; and (ii) related to waves generated in the ocean by HE by the Froude scaling law. (Author)