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A single oblate spheroid settling in unbounded ambient fluid: a benchmark for simulations in steady and unsteady wake regimes
Manuel Moriche, Markus Uhlmann, Jan Dušek
We have performed spectral/spectral-element simulations of a single oblate spheroid with small geometrical aspect ratio settling in an unbounded ambient fluid, for a range of Galil…
On the scaling of the instability of a flat sediment bed with respect to ripple-like patterns
Markus Scherer, Aman G. Kidanemariam, Markus Uhlmann
We investigate the formation of subaqueous transverse bedforms in turbulent open channel flow by means of direct numerical simulations with fully-resolved particles. The main goal…
On the ice-nucleating potential of warm hydrometeors in mixed-phase clouds
Michael Krayer, Agathe Chouippe, Markus Uhlmann +2
The question whether or not the presence of warm hydrometeors in clouds may play a significant role in the nucleation of new ice particles has been debated for several decades. Whi…
Can preferential concentration of finite-size particles in plane Couette turbulence be reproduced with the aid of equilibrium solutions?
Tiago Pestana, Markus Uhlmann, Genta Kawahara
This work employs for the first time invariant solutions of the Navier-Stokes equations to study the interaction between finite-size particles and near-wall coherent structures. We…