130 citations · 474 across the 14 of their papers we have counts for
14 papers
Settling of two rigidly connected spheres
Zachary Maches, Morgane Houssais, Alban Sauret +1
Laboratory experiments and particle-resolved simulations are employed to investigate the settling dynamics of a pair of rigidly connected spherical particles of unequal size. They…
Pairwise interaction of spherical particles aligned in oscillatory flow
Fabian Kleischmann, Paolo Luzzatto-Fegiz, Eckart Meiburg +1
We present a systematic simulation campaign to investigate the pairwise interaction of two mobile, monodisperse particles submerged in a viscous fluid and subjected to monochromati…
A simple criterion and experiments for onset of flocculation in kaolin clay suspensions
Nicholas Rommelfanger, Bernhard Vowinckel, Zixuan Wang +3
Cohesive effects between fine-grained sediment particles greatly influence their effective settling rate and erodibility. Many studies have observed a qualitative difference in set…
Particle-resolved simulations of four-way coupled, polydispersed, particle-laden flows
Yinuo Yao, Edward Biegert, Bernhard Vowinckel +5
We present a collocated-grid framework for Direct Numerical Simulations of polydisperse particles submerged in a viscous fluid. The fluid-particle forces are coupled with the Immer…
Flocculation of suspended cohesive particles in homogeneous isotropic turbulence
K. Zhao, F. Pomes, B. Vowinckel +3
We investigate the dynamics of cohesive particles in homogeneous isotropic turbulence, based on one-way coupled simulations that include Stokes drag, lubrication, cohesive and dire…
Rheology of mobile sediment beds sheared by viscous, pressure-driven flows
B. Vowinckel, E. Biegert, E. Meiburg +2
We present a detailed comparison of the rheological behaviour of sheared sediment beds in a pressure-driven, straight channel configuration based on data that was generated by mean…
An efficient cellular flow model for cohesive particle flocculation in turbulence
K. Zhao, B. Vowinckel, T. -J. Hsu +3
We propose a one-way coupled model that tracks individual primary particles in a conceptually simple cellular flow setup to predict flocculation in turbulence. This computationally…
Confronting Grand Challenges in Environmental Fluid Mechanics
T. Dauxois, T. Peacock, P. Bauer +10
Environmental fluid mechanics underlies a wealth of natural, industrial and, by extension, societal challenges. In the coming decades, as we strive towards a more sustainable plane…
Consolidation of freshly deposited cohesive and non-cohesive sediment: particle-resolved simulations
Bernhard Vowinckel, Edward Biegert, Paolo Luzzatto-Fegiz +1
We analyze the consolidation of freshly deposited cohesive and non-cohesive sediment by means of particle-resolved direct Navier-Stokes simulations based on the Immersed Boundary M…
Momentum balance of a laminar flow over a bed of particles
E. Biegert, B. Vowinckel, E. Meiburg
We develop a framework for analyzing the momentum balance of laminar particle-laden flows based on immersed boundary methods, which solve the Navier-Stokes equations and resolve th…
Settling of cohesive sediment: particle-resolved simulations
B. Vowinckel, J. Withers, P. Luzzatto-Fegiz +1
We develop a physical and computational model for performing fully coupled, particle-resolved Direct Numerical Simulations of cohesive sediment, based on the Immersed Boundary Meth…
Layer Formation in Sedimentary Fingering Convection
J. F. Reali, P. Garaud, A. Alsinan +1
When particles settle through a stable temperature or salinity gradient they can drive an instability known as sedimentary fingering convection. This phenomenon is thought to occur…
A collision model for grain-resolving simulations of flows over dense, mobile, polydisperse granular sediment beds
Edward Biegert, Bernhard Vowinckel, Eckart Meiburg
We present a collision model for phase-resolved Direct Numerical Simulations of sediment transport that couple the fluid and particles by the Immersed Boundary Method. Typically, a…
Particle-laden currents interacting with complex bottom topography: a numerical investigation
Mohamad M. Nasr-Azadani, Eckart Meiburg
We conduct depth-resolved three-dimensional Direct Numerical Simulations (DNS) of bi-disperse turbidity currents interacting with complex bottom topography in the form of a Gaussia…