4 papers
Combined Absorption and Emission Study of Air Species in NASA EAST
Jesse W. Streicher, Efaine Chang, Dylan L. Drescher +5
A suite of tunable diode laser absorption spectroscopy (TDLAS) diagnostics targeting rovibrational states of nitric oxide (NO) in the mid-infrared (MIR) and electronic states of at…
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…
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…
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…