Study of the energy convergence of the Karhunen-Loeve decomposition applied to the large-eddy simulation of a high-Reyno...
status: published
Spatially evolving cascades in temporal planar jets
Starting from an alternative decomposition of the turbulent field, a multi-dimensional statistical formalism for the description and understanding of turbulence in free-shear flows is proposed and applied to the symmetries of planar temporal jets. The theoretical framework is based on the exact equation for the second-order moment of the two-point ...
Magnetic Reconnection and Hot Spot Formation in Black Hole Accretion Disks
status: published
Wave Pressure and Energy Cascade Rate of Kink Waves Computed with Elsasser Variables
status: published
Non-intrusive reduced order modelling for the dynamics of geometrically nonlinear flat structures using three-dimensiona...
Non-intrusive methods have been used since two decades to derive reduced-order models for geometrically nonlinear structures, with a particular emphasis on the so-called STiffness Evaluation Procedure (STEP), relying on the static application of prescribed displacements in a finite-element context. We show that a particularly slow convergence of th...
ASSESSMENT OF A CAA METHODOLOGY FOR TURBULENCE-CASCADE INTERACTION NOISE PREDICTION AND REDUCTION FROM SERRATED AIRFOILS...
The acoustic response of a rectilinear cascade subjected to a grid turbulence will be analysed experimentally in a laboratory facility at the Ecole Centrale de Lyon in the framework of the H2020 European project InnoSTAT (https://cordis.europa.eu/project/id/865007). On this occasion, several noise reduction treatments will be evaluated. Here, we fo...
WRF-TEB: Implementation and evaluation of the coupled weather research and forecasting (WRF) and town energy balance (TE...
Urban land surface processes need to be represented to inform future urban climate and building energy projections. Here, the single layer urban canopy model Town Energy Balance (TEB) is coupled to the Weather Research and Forecasting (WRF) model to create WRF‐TEB. The coupling method is described generically, implemented into software, and the cod...
Hydrodynamic analysis of an axial impeller in a non‐Newtonian fluid through particle image velocimetry
The rheology of non-Newtonian fluids in agitated vessels is complex making equipment sizing more an art than a science. To increase our understanding and to resolve the data gap for computational fluid dynamics validation, we present a detailed particle image velocimetry study of the hydrodynamics of Carbopol encountered in a 70 L mechanically mixe...
Experimental Assessment of Dust Emissions on Compacted Soils Degraded by Traffic
Haul traffic on earthworks runways during construction works is an important factor of dust emission. Compacted soils surface become progressively degraded as the number of wheels passing increases. Fine particles are then segregated from the soil surface and lifted when the shear stress generated by the flow above the surface increases, leading to...
Steady-state large-eddy simulations of convective and stable urban Boundary layers
A comprehensive investigation is carried out to establish best practice guidelines for the modelling of statistically steady-state non-neutral urban boundary layers (UBL) using large-eddy simulation (LES). These steady-state simulations enable targeted studies under realistic non-neutral conditions without the complications associated with the inhe...
