Experimental modelling of tsunamis generated by pyroclastic density currents: the effects of particle size distribution on wave generation

<strong>Data set for experimental videos modelling the entrance of a fluidised granular flow into the water.</strong> The data set includes: a MATLAB script to calculated theoretical volume and density of a non-fluidised mixture. Properties of the fluidised granular flows on the fluidising ramp: volume, density, thickness, flow and impact Froude numbers, kinetic energy of the fluidised flows. Properties of the surface elevation: surface elevation at x = 1.6m away from the shoreline, velocity of the leading wave, maximum/minimum amplitudes, potential energy of the generated waves and the energy transfer between the flow and the water column. Properties of the underwater gravity current - displacement, velocity and thickness of the underwater velocity current. a MATLAB script to visualise the surface elevation.