scholarly journals A simplified method for calculating spectral emission of nonequilibrium air plasmas in hypersonic shock-layers

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Xin He ◽  
Cheng Gao ◽  
Tao Jiang
Keyword(s):  
Energy Level ◽  
Electronic Energy ◽  
Air Plasma ◽  
Spectral Emission ◽  
Radiative Processes ◽  
Air Plasmas ◽  
Significant Difference ◽  
Simplified Method ◽  
Electronic Energy Level ◽  
Hypersonic Shock

AbstractA simplified method for calculating the spectral emission of nonequilibrium air plasmas is developed. In order to obtain the nonequilibrium energy level populations, the nonequilibrium coefficients are introduced into the Saha-Boltzmann equation. These nonequilibrium coefficients are calculated by using several significant radiative processes. An approach to the determination of nonequilibrium electronic energy level populations of diatomic molecules is also presented. Based on the method, spectral emission of atoms and molecules in a typical air plasma cell is investigated. The results reveal that there is a significant difference between the nonequilibrium and equilibrium emission. We apply the method to the nonequilibrium AVCO R-156 experiment. Good agreement with the NEQAIR code and the measured data is shown, indicating that the method is reasonable and has good accuracy.

scholarly journals A Simplified Method for Calculating Spectral Emission of Nonequilibrium Air Plasmas in Hypersonic Shock-Layers

2020 ◽  
Author(s):  
Xin He ◽  
Cheng Gao ◽  
Tao Jiang
Keyword(s):  
Energy Level ◽  
Electronic Energy ◽  
Air Plasma ◽  
Spectral Emission ◽  
Radiative Processes ◽  
Air Plasmas ◽  
Significant Difference ◽  
Simplified Method ◽  
Electronic Energy Level ◽  
Hypersonic Shock

Abstract A simplified method for calculating the spectral emission of nonequilibrium air plasmas is developed. In order to obtain the nonequilibrium energy level populations, the nonequilibrium coefficients are introduced into the Saha-Boltzmann equation. These nonequilibrium coefficients are calculated by using several significant radiative processes. An approach to the determination of nonequilibrium electronic energy level populations of diatomic molecules is also presented. Based on the method, spectral emission of atoms and molecules in a typical air plasma cell is investigated. The results reveal that there is a significant difference between the nonequilibrium and equilibrium emission. We apply the method to the nonequilibrium AVCO R-156 experiment. Good agreement with the measured data is shown, indicating that the method is reasonable and has good accuracy.

scholarly journals A simplified method of calculating electronic energy level populations in nonequilibrium plasmas

2021 ◽  
Vol 70 (14) ◽  
pp. 145202-145202
Author(s):  
He Xin ◽  
◽  
Jiang Tao ◽  
Gao Cheng ◽  
Zhang Zhen-Fu ◽  
...  
Keyword(s):  
Energy Level ◽  
Electronic Energy ◽  
Nonequilibrium Plasmas ◽  
Simplified Method ◽  
Electronic Energy Level

A solid reaction towards in situ hybridization of carbon dots and conjugated polymers for enhanced light absorption and conversion

2017 ◽  
Vol 53 (68) ◽  
pp. 9426-9429 ◽  
Author(s):  
Shengliang Hu ◽  
Yufeng Zhou ◽  
Chaorui Xue ◽  
Jinlong Yang ◽  
Qing Chang
Keyword(s):  
In Situ Hybridization ◽  
Energy Level ◽  
Conjugated Polymers ◽  
Carbon Dots ◽  
Level Structure ◽  
Electronic Energy ◽  
Solid Reaction ◽  
Energy Level Structure ◽  
Electronic Energy Level

The incorporation of carbon dots into poly(diphenylbutadiyne) nanostructures induces the change of the electronic energy level structure and enhances photocatalytic performances.

scholarly journals Electronic energy level alignment at metal-molecule interfaces with aGWapproach

2011 ◽  
Vol 84 (20) ◽  
Author(s):  
Isaac Tamblyn ◽  
Pierre Darancet ◽  
Su Ying Quek ◽  
Stanimir A. Bonev ◽  
Jeffrey B. Neaton
Keyword(s):  
Energy Level ◽  
Electronic Energy ◽  
Energy Level Alignment ◽  
Electronic Energy Level
Sign in / Sign up

Export Citation Format

Share Document