Dynamics of plasma formation and gas heating in a focused-microwave discharge in nitrogen

Saifutdinov, A. I.; Кустова, Е. В.

doi:10.1063/5.0031020

“…Разработаны также различные подходы к моделированию распространения СВЧ излучения в волноводах с различной формой поперечного сечения [9,10]. Широкий круг теоретических, экспериментальных и численных исследований микроволнового разряда в воздухе, включая энергоподвод в сверхзвуковой поток, приводится в работах [11][12][13][14][15].…”

Section: Introductionunclassified

Электродинамическая Модель Камеры Сгорания, Использующей Инициированный Подкритический Стримерный Разряд Для Поджигания Топливной Смеси

Булат¹,

Волков²,

Есаков³

et al. 2022

Журнал Технической Физики

0

View full text Add to dashboard Cite

Various electrodynamic models of a combustion chamber, in which an initiated subcritical streamer discharge is used to ignite a combustible mixture, are considered. To localize the discharge in the working chamber, discharge initiators are used based on half-wave electromagnetic vibrators with resonant properties. The dependences of the structure of the electric fields that form the discharge on the geometric parameters of the discharge initiator are obtained on the basis of numerical calculations, and the issues of matching the chamber with the radiation generator are considered. Comparison of the calculation options for different positions of the initiator of the discharge in relation to the optical centreline of the camera. Possibilities for further enhancement of the field in the working zone at the poles of the microwave discharge initiator, which is required for the formation of discharges with a developed streamer structure at elevated gas pressures in the combustion chamber, are discussed. The ways of increasing the resulting electromagnetic field in the area of vibrators for the formation of discharges with a volumetric structure have been determined.

show abstract

“…Various approaches to modeling microwave radiation propagation in waveguides with different crosssectional shapes have also been developed [9,10]. A wide range of theoretical, experimental, and numerical studies of a microwave discharge in air, including energy input to supersonic flow, are given in papers [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

Булат

¹

,

Волков

²

,

Esakov

³

et al. 2022

Technical Physics

0

View full text Add to dashboard Cite

Various electrodynamic models of a combustion chamber, in which an initiated subcritical streamer discharge is used to ignite a combustible mixture, are considered. To localize the discharge in the working chamber, discharge initiators are used based on half-wave electromagnetic vibrators with resonant properties. The dependences of the structure of the electric fields that form the discharge on the geometric parameters of the discharge initiator are obtained on the basis of numerical calculations, and the issues of matching the chamber with the radiation generator are considered. Comparison of the calculation options for different positions of the initiator of the discharge in relation to the optical centreline of the camera. Possibilities for further enhancement of the field in the working zone at the poles of the microwave discharge initiator, which is required for the formation of discharges with a developed streamer structure at elevated gas pressures in the combustion chamber, are discussed. The ways of increasing the resulting electromagnetic field in the area of vibrators for the formation of discharges with a volumetric structure have been determined. Keywords: microwave radiation, streamer discharge, electrodynamic model, plasma combustion, combustion chamber.

show abstract

“…Проделанные эксперименты показали значительное влияние плазмы СВЧ разряда на параметры набегающего потока, и оптимальные условия для приложений исследуются в новых работах [9][10][11][12][13][14][15].…”

Section: Introductionunclassified

Распространение Одиночной Волны Давления По Области Разряда Микроволнового Диапазона Длин Волн В Воздухе При Средних Давлениях

Бычков¹,

Грачев²,

Есаков³

et al. 2021

Журнал Технической Физики

0

View full text Add to dashboard Cite

Results of experiments on a propagation of a pressure wave with a shock-wave leading front through a gas region excited by a pulsed freely localized discharge of the microwave wavelength range are described. The discharge was realized in air at a pressure from 14 to 100 Torr in the focal region of a quasi-optical electromagnetic beam of the microwave wavelength range. The experiments revealed three types of interaction of the gas-dynamic pulse with the region excited by the discharge in the post-discharge mode. The specific type of interaction is defined by the initial structure of the discharge and the delay time of the gas-dynamic pulse passage through the excited region.

show abstract

Dynamics of plasma formation and gas heating in a focused-microwave discharge in nitrogen

Cited by 22 publications

References 43 publications

Электродинамическая Модель Камеры Сгорания, Использующей Инициированный Подкритический Стримерный Разряд Для Поджигания Топливной Смеси

Электродинамическая Модель Камеры Сгорания, Использующей Инициированный Подкритический Стримерный Разряд Для Поджигания Топливной Смеси

Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

Распространение Одиночной Волны Давления По Области Разряда Микроволнового Диапазона Длин Волн В Воздухе При Средних Давлениях

Contact Info

Product

Resources

About