Yanes, Nelson J. and Austin, Joanna M. (2019) Nitric Oxide Spectroscopic Measurements in a Hypervelocity Stagnation Flow. In: AIAA Scitech 2019 Forum. AIAA , Reston, VA, Art. No. 2019-0794. ISBN 9781624105784. https://resolver.caltech.edu/CaltechAUTHORS:20190805-134838397
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Abstract
Spatially resolved emission spectra are collected along the stagnation streamline of hypervelocity flow over a circular cylinder. Excitation temperatures are extracted from the NO γ band (A^2Σ^+ - Χ^2Π) emission at downstream locations behind the bow shock. The result is a temperature relaxation profile that quantifies the state of thermal non-equilibrium. Results are compared against a zero-dimensional state-to-state model and a two-temperature, reacting Navier-Stokes simulation. Test gas O_2 mole fraction is varied from 30% to 120% of the air value to examine changes in relaxation profile.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 2019 American Institute of Aeronautics and Astronautics. | ||||||
| Group: | GALCIT | ||||||
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| DOI: | 10.2514/6.2019-0794 | ||||||
| Record Number: | CaltechAUTHORS:20190805-134838397 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190805-134838397 | ||||||
| Official Citation: | Nitric Oxide Spectroscopic Measurements in a Hypervelocity Stagnation Flow Nelson J. Yanes and Joanna M. Austin AIAA Scitech 2019 Forum. https://doi.org/10.2514/6.2019-0794 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 97652 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | George Porter | ||||||
| Deposited On: | 07 Aug 2019 22:34 | ||||||
| Last Modified: | 16 Nov 2021 17:33 |
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