Abstract
In order to predict the behavior of floating body under tsunami flood appropriately, numerical simulation is effective to reproduce the dynamics with drift. As analyzing the movement of flotsam, it is significant to evaluate the drag force exerted on the float shape.We prepared the drift simulation model based on the Distinct Element Method (DEM). In the simulation, every flotsam shape was expressed by an assembly of individual sphere elements and current velocity field generated by tsunami was given from the result of the tsunami propagation simulation computed in advanceThis paper shows experimental results of container's drag force coefficient as a function of every current angle. And we refer the application of a drift simulation method considering the drag force by comparing the drift motion obtained from the experiment in a 2-dimensional plane water tank with that of the simulation result for above-mentioned float model.
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