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10 papers · 1 filter
Estimation of the thermal properties of an historic building wall by combining Modal Identification Method and Optimal Experiment Design
Julien Berger, Benjamin Kadoch
The estimation of wall thermal properties by \emph{in situ} measurement enables to increase the reliability of the model predictions for building energy efficiency. Nevertheless, r…
Mechanisms for recirculation cells in granular flows in rotating cylindrical rough tumblers
Umberto d'Ortona, Nathalie Thomas, Richard Lueptow
Friction at the endwalls of partially-filled horizontal rotating tumblers induces curvature and axial drift of particle trajectories in the surface flowing layer. Here we describe…
Transient flows and migration in granular suspensions: key role of Reynolds-like dilatancy
Shivakumar Athani, Bloen Metzger, Yoel Forterre +1
We investigate the transient dynamics of a sheared suspension of neutrally buoyant particles under pressure-imposed conditions, subject to a sudden change in shear rate or external…
Clustering of Inertial Particles in Turbulent Flow Through a Porous Unit Cell
Sourabh V. Apte, Thibault Oujia, Keigo Matsuda +3
Direct numerical simulation is used to investigate effects of turbulent flow in the confined geometry of a face-centered cubic porous unit cell on the transport, clustering, and de…
Unsteady and inertial dynamics of an active particle in a fluid
T. Redaelli, F. Candelier, R. Mehaddi +1
It is well known that the reversibility of Stokes flow makes it difficult for small microorganisms to swim. Inertial effects break this reversibility, allowing new mechanisms of pr…
Shapes of a filament on the surface of a bubble
S Ganga Prasath, Joel Marthelot, Rama Govindarajan +1
The shape assumed by a slender elastic structure is a function both of the geometry of the space in which it exists and the forces it experiences. We explore by experiments and the…