3 papers
physics.space-ph2026
Emissivity of oxidizing titanium in simulated atmospheric entry flows
Andrea Fagnani, Bernd Helber, Annick Hubin +1
The aerothermal demise of titanium components plays a critical role in the uncontrolled re-entry of space debris from low-Earth orbit. Exposure to high temperatures and dissociated…
physics.flu-dyn2025
Characterization of the VKI Plasmatron subsonic ICP jet combining optical emission spectroscopy, intrusive measurements, and CFD simulations
Andrea Fagnani, Bernd Helber, Damien Le Quang +4
This paper addresses the characterization of the subsonic flow in the 1.2~MW Inductively Coupled Plasma (ICP) wind tunnel at the von Karman Institute for Fluid Dynamics (VKI), targ…
physics.ins-det2023
Line-of-sight gas radiation effects on near-infrared two-color ratio pyrometry measurements during plasma wind tunnel experiments
Andrea Fagnani, Bernd Helber, Annick Hubin +1
Two-color ratio pyrometry is commonly used to measure the surface temperature of aerospace materials during plasma wind tunnel experiments. However, the effect of the plasma radiat…