Multidimensional modeling of pyrolysis gas transport inside charring ablative materials

H Weng, A Martin - Journal of Thermophysics and Heat Transfer, 2014 - arc.aiaa.org
The behavior of pyrolysis gas transport in arcjet test samples is numerically studied. The
simulation of the pyrolysis gas flow inside a porous material is presented, using two different …

Optical temperature measurement in unsteady plasma free jet

T Hermann, EWK Chang - Measurement Science and …, 2024 - iopscience.iop.org
An Argon plasma free jet is investigated using spectrally narrow bandpass filtered high-
speed imaging. The images were captured at 16 kHz with an exposure time of 3.9 μs and …

Comparative measurements of earth and martian entry environments in the nasa langley hymets facility

S Splinter, K Bey, J Gragg, A Brewer - 49th AIAA Aerospace Sciences …, 2011 - arc.aiaa.org
I. Introduction rc-jet facilities play a major role in the development of heat shield materials for
entry vehicles because they are capable of producing representative high-enthalpy flow …

Development of Small Scale Arc-jet Facility OPG1

T Hermann, EWK Chang, J Schäfer… - AIAA SciTech 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-2331. vid A small-scale thermal arc-
jet facility based on a 21.5 kW tungsten inert gas welding power supply has been …

Spectroscopic Characterization of a High-Enthalpy Plasma Arcjet Tunnel

KE Samuels, D Baccarella - AIAA SCITECH 2023 Forum, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-2517. vid The characterization and
quantification of thermochemical properties in high-enthalpy wind tunnels are a current …

Calibration probe uncertainty and validation for the hypersonic material environmental test system

AJ Brune, TK West IV, LM White - Journal of Thermophysics and Heat …, 2020 - arc.aiaa.org
This paper presents an uncertainty analysis of the stagnation-point calibration probe surface
predictions for conditions that span the performance envelope of the Hypersonic Materials …

The versatility of HVOF burner rig testing for ceramic matrix composite evaluation

GN Morscher, RP Panakarajupally… - Journal of Composites …, 2021 - mdpi.com
Effective testing of ceramic matrix composites (CMCs) and CMC/coating systems for high
temperature, high stress, high velocity and/or severe oxidation/corrosion environments is a …

Molecular-based optical diagnostics for hypersonic nonequilibrium flows

P Danehy, B Bathel, C Johansen, M Winter, S O'Byrne… - 2015 - ntrs.nasa.gov
This presentation package consists of seven different talks rolled up into one. These talks
are all invited orals presentations in a special session at the Aviation 2015 conference and …

Characterization of CO2 flow in a hypersonic impulse facility using DLAS

JM Meyers, S Paris, DG Fletcher - Experiments in Fluids, 2016 - Springer
This work documents diode laser absorption measurements of CO 2 flow in the free stream
of the Longshot hypersonic impulse facility at Mach numbers ranging from 10 to 12. The …

Computational predictions of the hypersonic material environmental test system arcjet facility

AJ Brune, WE Bruce III, DE Glass… - Journal of thermophysics …, 2019 - arc.aiaa.org
The Hypersonic Materials Environmental Test System arcjet facility located at the NASA
Langley Research Center in Hampton, Virginia, is primarily used for the research …