Investigation of the Thermochemical Non-Equilibrium Phenomena in the Wake of a Hypersonic Vehicle using Three-Temperature Models
Document Type
Conference Proceeding
Publication Date
1-8-2018
Abstract
Two three-temperature thermochemical non-equilibrium models were utilized to investigate the wake of a hypersonic vehicle. The three-temperature models under consideration both split the free-electron energy into a separate equation but differ in how the electronic energy is partitioned: with the vibrational energy or the free-electron energy. Simulations were completed on the flow-field around the RAM C-II vehicle and the electron density in the shock layer was compared to the flight test data. The solution domain was then extended far downstream and the non-equilibrium phenomena predicted by each model within the wake was investigated and compared to the common two-temperature model. Results show that the three-temperature model, where the electronic energy is partitioned with the free-electron energy, predict a large region within the wake were the electron-electronic energy is in a higher energy state than both the translational-rotational and vibrational energies.
Source Publication
2018 AIAA Aerospace Sciences Meeting
Recommended Citation
Clarey, M. P., & Greendyke, R. B. (2018). Investigation of the Thermochemical Non-Equilibrium Phenomena in the Wake of a Hypersonic Vehicle using Three-Temperature Models. 2018 AIAA Aerospace Sciences Meeting, # 2018-0744. https://doi.org/10.2514/6.2018-0744
Comments
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Author note: Matthew Clarey was an AFIT PhD candidate at the time of this conference. (AFIT-ENY-DS-18-S-059, September 2018)