9 papers
Suppressing wall modes in confined rotating turbulent convection
Lázaro MartÃnez-OrtÃz, Maarten Minartz, Youri H. Lemm +3
In confined turbulent rotating convection, the largest vertical velocities are found near the sidewalls in the form of wave-like structures known as wall modes. These structures pe…
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…
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…
Comparing surface and deep horizontal distributions of depth-keeping particles in shallow fluid layers
Lenin M. Flores RamÃrez, 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…
Dynamics of small bubbles in turbulence in non-dilute conditions
Xander M. de Wit, Hessel J. Adelerhof, André Freitas +3
Turbulent flows laden with small bubbles are ubiquitous in many natural and industrial environments. From the point of view of numerical modeling, to be able to handle a very large…
The Persistent Clock of Turbulent Thermal Convection
Lázaro MartÃnez-OrtÃz, Youri H. Lemm, Herman J. H. Clercx +1
The large-scale circulation (LSC) of turbulent convection is a prominent feature of its dynamics and forms the basis for descriptive theories. We show, using experimental and numer…