Collisional Radiative Model to Estimate Nitric Oxide Vibrational Level Populations in High Mach Number Flows

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

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

Abstract

A collisional radiative (CR) model for Nitric Oxide (NO) has been developed to characterize the state-to-state transitions of the vibrational states of NO through collisional and radiative processes. The CR model has been incorporated into a mass transport equation (MassTR) solver to estimate vibrational level populations of NO for a canonical setup of a hypersonic flow over a cylinder. The MassTR solver has been overlayed over flowfield results calculated using the Direct Simulation Monte Carlo (DSMC) method. Furthermore, the DSMC calculation is sampled in the wake regions to obtain estimates of the vibrational states of NO based on the energy distribution in the vibrational modes. Comparisons between these sampled distribution functions and the ones obtained from the MassTR solver help assess the validity of the mass transport approach and the performance of the CR model.

Original languageEnglish (US)
Title of host publicationAIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624107047
DOIs
StatePublished - 2023
EventAIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023 - San Diego, United States
Duration: Jun 12 2023Jun 16 2023

Publication series

NameAIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023

Conference

ConferenceAIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023
Country/TerritoryUnited States
CitySan Diego
Period6/12/236/16/23

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Aerospace Engineering

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