Fig. 6: Effect of slide density and slope on the energy transfer efficiency.
From: On the optimum of the energy transfer efficiency in the generation of waves by subaerial landslides

Slide case: hs = 1.25h0 and hl = 0. Top panels ((a–c)): Snapshots of the fluid interfaces, streamlines, and turbulent dissipation rate ϵ around the leading wave at the same times as Fig. 5 for different slide densities. d Wave energy versus slide initial energy E0 for different slide densities. The black dashed vertical line shows the optimum case obtained with respect to the density. e–h Same as (a–d) (respectively) with a slide a density of 1750 kg. m−3 and varying the slope, keeping As constant. In (h), the red dashed vertical line shows the optimum case obtained in this study (i.e., a slope equal to 30°). d, h curve symbols definition as in Fig. 4.