衝撃波背後のアルゴンプラズマにおける連続スペクトルを用いた電子温度診断

第54回流体力学講演会/第40回航空宇宙数値シミュレーション技術シンポジウム (2022年6月29日-7月1日. いわて県民情報交流センター(アイーナ)), 盛岡市, 岩手

The 54th Fluid Dynamics Conference / the 40th Aerospace Numerical Simulation Symposium (June 29 - July 1, 2022. Iwate Citizen Information Exchange Center (Aiina)), Morioka, Iwate, Japan

In this study, the electron temperature of argon plasma behind shock wave is determined based on continuum emission spectra observed from electron-neutral atom (e-a) bremsstrahlung. Continuum emission spectra are observed by spectroscopic measurements using a shock tube. Theoretical spectra of e-a bremsstrahlung are calculated with changing electron temperature as a parameter, and fitted to the measured continuum spectra. The electron temperatures obtained with this method show a reasonable agreement with the calculated ones obtained by CFD simulation. However, a disagreement is seen in the region near the shock front, and therefore, the effect of another radiation processes should be considered into theoretical spectra. The result shows that the validity of this electron temperature diagnostics for argon plasmas behind shock waves.

抄録の誤記: theroretical spectra

形態: カラー図版あり

The clerical error of abstract: theroretical spectra

Physical characteristics: Original contains color illustrations

資料番号: AA2230023024

レポート番号: JAXA-SP-22-007