Publication detail

Numeric Modelling of V-T Process in Nitrogen Ground State under Post-Discharge Conditions

SOURAL, I. KRČMA, F.

Original Title

Numeric Modelling of V-T Process in Nitrogen Ground State under Post-Discharge Conditions

English Title

Numeric Modelling of V-T Process in Nitrogen Ground State under Post-Discharge Conditions

Type

journal article - other

Language

en

Original Abstract

In presented numeric model of nitrogen plasma, the vibration distribution function (VDF) was studied in time. About 90 % of total energy in plasma dissipated into vibration levels and changed to the electron excitation, ionization, dissociation and another processes. Thus more processes such as v-t, v-v, etc. were necessary to know for the calculation of VDF in time. First step was the simulation of v-t process for the collision of N_2 molecule with N_2 (X, v) on the computer. Subsequently, probabilities of the v-t transfer were calculated from the SSH theory at particular discharge conditions. Finally, the VDF model in time was calculated from the obtained transfer probabilities and initial concentrations in active discharge, but only for the v-t process. Population vibration levels in VDF were changing to the Boltzman distribution.

English abstract

In presented numeric model of nitrogen plasma, the vibration distribution function (VDF) was studied in time. About 90 % of total energy in plasma dissipated into vibration levels and changed to the electron excitation, ionization, dissociation and another processes. Thus more processes such as v-t, v-v, etc. were necessary to know for the calculation of VDF in time. First step was the simulation of v-t process for the collision of N_2 molecule with N_2 (X, v) on the computer. Subsequently, probabilities of the v-t transfer were calculated from the SSH theory at particular discharge conditions. Finally, the VDF model in time was calculated from the obtained transfer probabilities and initial concentrations in active discharge, but only for the v-t process. Population vibration levels in VDF were changing to the Boltzman distribution.

Keywords

vibrational distribution, nitrogen post-discharge kinetics, V-T energy transfer

RIV year

2008

Released

08.09.2008

Location

Brno

Pages from

1189

Pages to

1193

Pages count

5

BibTex


@article{BUT49566,
  author="Ivo {Soural} and František {Krčma}",
  title="Numeric Modelling of V-T Process in Nitrogen Ground State under Post-Discharge Conditions",
  annote="In presented numeric model of nitrogen plasma, the vibration distribution function (VDF) was studied in time. About 90 % of total energy in plasma dissipated into vibration levels and changed to the electron excitation, ionization, dissociation and another processes. Thus more processes such as v-t, v-v, etc. were necessary to know for the calculation of VDF in time. First step was the simulation of v-t process for the collision of N_2 molecule with N_2 (X, v) on the computer. Subsequently, probabilities of the v-t transfer were calculated from the SSH theory at particular discharge conditions. Finally, the VDF model in time was calculated from the obtained transfer probabilities and initial concentrations in active discharge, but only for the v-t process. Population vibration levels in VDF were changing to the Boltzman distribution.",
  chapter="49566",
  journal="Chemické listy",
  number="15",
  volume="102",
  year="2008",
  month="september",
  pages="1189--1193",
  type="journal article - other"
}