1.7k citations · 3.7k across the 33 of their papers we have counts for
33 papers
Investigating the mechanism by which finite-size heavy particles are entrained in turbulent open channel flow over a smooth surface
Tatia Bzikadze, Markus Weyrauch, Markus Uhlmann
The dynamics of entrainment of finite-size heavy particles in a turbulent open channel flow over a smooth surface are analyzed. Three types of simulations, namely with freely movin…
Incipient motion of a single particle on a regular substrate in an oscillatory flow
Timo J. J. M. van Overveld, Marco Mazzuoli, Markus Uhlmann +2
We investigate and model the initiation of motion of a single particle on a structured substrate within an oscillatory boundary layer flow, following a mechanistic approach. By det…
Chaotic and time-periodic edge states in square duct flow
Markus Scherer, Markus Uhlmann, Genta Kawahara
We analyse the dynamics within the stability boundary between laminar and turbulent square duct flow with the aid of an edge-tracking algorithm. As for the circular pipe, the edge…
An efficient method for particle-resolved simulations of neutrally buoyant spheres
Manuel Garcia-Villalba, Blanca Fuentes, Jan Dusek +2
We present a simple modification of the direct-forcing immersed boundary method (IBM) proposed by Uhlmann [J. Comput. Phys, 2005] in order to enable it to be applied to particulate…
On the clustering of low-aspect-ratio oblate spheroids settling in ambient fluid
Manuel Moriche, Daniel Hettmann, Manuel García-Villalba +1
We have performed particle-resolved direct numerical simulations of many heavy non-spherical particles settling under gravity in the dilute regime. The particles are oblate spheroi…
Direct numerical simulation of turbulent mass transfer at the surface of an open channel flow
Michele Pinelli, Herlina Herlina, Jan G. Wissink +1
We present direct numerical simulation results of turbulent open channel flow at bulk Reynolds numbers up to 12000, coupled with (passive) scalar transport at Schmidt numbers up to…