Wave types of landslide generated impulse waves |
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| Authors: | V Heller WH Hager |
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| Institution: | a School of Civil Engineering and the Environment, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
b VAW, ETH Zurich, CH-8092 Zürich, Switzerland |
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| Abstract: | Subaerial landslide generated impulse waves were investigated in a prismatic wave channel. Seven governing parameters, namely the still water depth, slide impact velocity, slide thickness, bulk slide volume, bulk slide density, slide impact angle, and grain diameter, were systematically varied. The generated impulse waves are nonlinear, intermediate- to shallow-water waves involving a small to considerable fluid mass transport. The Stokes wave, cnoidal wave, solitary wave, and bore theories were applied to describe the observed maximum waves. The theoretical and observed features of these four wave types are highlighted. A diagram allows to predict the wave type directly as a function of the slide parameters, the slide impact angle, and the still water depth. |
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| Keywords: | Impulse wave Landslide Nonlinear wave theory Physical model test Wave generation Wave type classification |
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