On the dependency of jumps on particle shape in bedload transport of monodisperse non-spherical particles

<p><span><span>Accurate prediction of sediment transport is highly desirable because of its </span><span>key</span><span> importance in many environmental and industrial applications. One way to approach this is to measure the length and height of the jump of a moving particle. This led to many studies dealing with the quantification of a particle jump. Nevertheless, few experiments have been performed to understand the effect of particle shape on its jump. A dataset of jumps of different</span><span>ly</span><span> shaped particles has been generated </span><span>by the authors</span><span> from direct numerical simulations of bedload transport in a turbulent open channel flow. A total of four simulations were performed with a large number of mobile single shaped, mono-disperse particles. Four ellipsoidal shapes were used in these simulations, i.e. oblate, prolate, sphere, and a generally shaped ellipsoid. In the present contribution, statistical properties of the jump trajector</span><span>ies</span><span> such as ejection and landing angles, flight length, height, and time, etc. </span><span>w</span><span>ill be reported</span><span>. </span><span>M</span><span>ean jump trajectories for different particle shapes were calculated using </span><span>the </span><span>Dynamic-Time-Warping algorithm. The analysis provides a quantification of the different behavior of the particles under the present conditions. For example, it is observed that oblate particles travel a maximum distance in a jump, while spherical particles take small jumps but more often. </span></span></p>