5 papers · 1 filter
Lock-exchange flow regimes under low air Froude number bubble curtains
Shravan K. R. Raaghav, Herman J. H. Clercx, Matias Duran-Matute
The flow and density field characteristics around a bubble curtain in a laboratory scale lock-exchange setup are investigated using two-phase large-eddy simulations. We study the d…
Comparing surface and deep horizontal distributions of depth-keeping particles in shallow fluid layers
Lenin M. Flores Ramírez, Matias Duran-Matute, Herman J. H. Clercx
This study examines whether the dispersion of passive particles at the free surface of a generic (nonturbulent) shallow flow can reliably represent the behavior of depth-keeping pa…
Bubble curtains in a lock-exchange flow: the importance of transient dynamics in the curtain-driven regime
Shravan K. R. Raaghav, Ronald J. A. Driessen, Tom S. D. O'Mahoney +3
Bubble curtains are line bubble plumes that are used to mitigate saltwater intrusion in ship locks. When the lock gate that separates saline seawater from fresh river water is open…
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…
A numerical study of a pair of spheres in an oscillating box filled with viscous fluid
T. J. J. M. van Overveld, M. T. Shajahan, W. -P. Breugem +2
When two spherical particles submerged in a viscous fluid are subjected to an oscillatory flow, they align themselves perpendicular to the direction of the flow leaving a small gap…