Aerodynamic benefits for a cyclist by drafting behind a motorcycle
status: published
Wave Pressure and Energy Cascade Rate of Kink Waves Computed with Elsasser Variables
status: published
Understanding the origins of the heliosphere: integrating observations and measurements from Parker Solar Probe, Solar O...
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Context. The launch of Parker Solar Probe (PSP) in 2018, followed by Solar Orbiter (SO) in February 2020, has opened a new window in the exploration of solar magnetic activity and the origin of the heliosphere. These missions, together with other space observatories dedicated to solar observations, such as the Solar Dynamics Observatory, Hinode, IR...
Analysis of experimental data on the effect of fire source elevation on fire and smoke dynamics and the critical velocit...
status: published
The heliospheric current sheet and plasma sheet during Parker Solar Probe’s first orbit
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We present heliospheric current sheet (HCS) and plasma sheet (HPS) observations during Parker Solar Probe's (PSP) first orbit around the Sun. We focus on the eight intervals that display a true sector boundary (TSB; based on suprathermal electron pitch angle distributions) with one or several associated current sheets. The analysis shows that (1) t...
Quantifying the contribution of individual technologies in integrated urban energy systems – A system value approach
Integrated urban energy systems satisfy energy demands in a cost-effective manner by efficiently combining diverse technologies and energy saving strategies. However, the contribution of an individual technology within a complex system is difficult to quantify. This study introduces a generalized “system value” approach to quantify the contribution...
Coronal electron temperature inferred from the strahl electrons in the inner heliosphere: parker solar probe and helios ...
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The shape of the electron velocity distribution function plays an important role in the dynamics of the solar wind acceleration. Electrons are normally modeled with three components, the core, the halo, and the strahl. We investigate how well the fast strahl electrons in the inner heliosphere preserve the information about the coronal electron temp...
Analysis of experimental data on the effect of fire source elevation on fire and smoke dynamics and the critical velocit...
A 1/3 scaled tunnel model was built to explore the effect of fire source elevation on fire and smoke behavior, and especially the critical velocity, in a tunnel with longitudinal ventilation. An experimental campaign has been carried out with a series of tests in 9 configurations, varying the fire size, ventilation velocity and fire elevation. Resu...
Three-Dimensional Wind Measurements with the Fibered Airborne Coherent Doppler Wind Lidar LIVE
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A three-dimensional (3D) wind profiling Lidar, based on the latest high power 1.5 µ / m fiber laser development at Onera, has been successfully flown on-board a SAFIRE (Service des Avions Franç / ais Instrumenté / s pour la Recherche en Environnement) ATR42 aircraft. The Lidar called LIVE (LIdar VEnt) is designed to measure wind pr...
A New Planetary Boundary Layer Scheme Based on LES: Application to the XPIA Campaign
status: published
