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
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...
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...
Analytical framework for disturbance energy balance in thermoacoustic devices
Analysis and modelling of the relation between the shear rate and Reynolds stress tensors in transitional boundary layer...
A non-linear eddy-viscosity transition model is presented, tuned by a large experimental data set describing transitional boundary layers. Data have been acquired by TR-PIV on a flat plate placed in a 2D converging-diverging channel with variable opening angle, allowing variation of the adverse pressure gradient, the free-stream turbulence intensit...
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...
Highly Alfvenic slow solar wind at 0.3 au during a solar minimum: Helios insights for Parker Solar Probe and Solar Orbit...
Alfvénic fluctuations in solar wind are an intrinsic property of fast streams, while slow intervals typically have a very low degree of Alfvénicity, with much more variable parameters. However, sometimes a slow wind can be highly Alfvénic. Here we compare three different regimes of solar wind, in terms of Alfvénic content and spectral properties, d...
Sub‐mesoscale fronts modify elephant seals foraging behavior
Sub-mesoscale fronts—with scales from 1 to 50 km are ubiquitous in satellite images of the world oceans. They are known to generate strong vertical velocities with significant impacts on biogeochemical fluxes and pelagic ecosystems. Here, we use a unique data set, combining high-resolution behavioral and physical measurements, to determine the effe...
