Modeling of Nitric Oxide Vibrational Level Populations Using an Overlay Approach for Emission and Absorption Spectra

Shubham Thirani, Irmak T. Karpuzcu, Deborah A. Levin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Modeling of Nitric Oxide (NO) vibrational level populations is being performed for a flow over a cylinder case with a free stream Mach number of 7.2. The flow field results for the base flow are calculated using the Direct Simulation Monte Carlo (DSMC) method. A collisional-radiative(CR) model has been constructed to compute estimates of the vibrational level populations of NO. The overlay approach is used to couple the CR model with the base flow field by in corporating the CR model into a mass transport (MTR) equation solver. The overlay approach predicts distributions of NO vibrational level populations which differ significantly from those obtained using the Quasi-Steady State (QSS) approximation or the Boltzmann distribution defined at thermal equilibrium conditions.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum and Exposition, 2023
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106996
DOIs
StatePublished - 2023
EventAIAA SciTech Forum and Exposition, 2023 - Orlando, United States
Duration: Jan 23 2023Jan 27 2023

Publication series

NameAIAA SciTech Forum and Exposition, 2023

Conference

ConferenceAIAA SciTech Forum and Exposition, 2023
Country/TerritoryUnited States
CityOrlando
Period1/23/231/27/23

ASJC Scopus subject areas

  • Aerospace Engineering

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