Propagation of intense microwave pulses in air and in a waveguide

Yee, Jick H.; Mayhall, D.J.; Sieger, G.E.; Alvarez, Rodrigo

doi:10.1109/8.99053

Cited by 29 publications

(10 citation statements)

References 9 publications

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“…The 3-D fluid model for the plasma limiter prototype that was derived from Yee et al, 11 is provided. It consists of three parts; Maxwell's equations, the electron fluid equations, and the transport coefficients that are obtained by the modified EEDF.…”

Section: Methodsmentioning

confidence: 99%

“…It is because, as a transient simulation, the characteristic time for diffusion is much longer than simulating time that we concerned, and the loss to the wall is also neglected since the diffusion loss and secondary electron emission are neutralized. 11,24 We apply the SETD method to solve the non-linear strong coupled PDEs (1)- (5). The SETD method brings up two advantages.…”

Section: B Transport Coefficientsmentioning

confidence: 99%

“…Yee, et al, established a fluid model and developed a set of self-consistent equations to study the HPM propagation problems in the atmosphere. [11][12][13] Liao et al, introduced a modified electron energy distribution function (EEDF) into the fluid model that improved the accuracy of the model. 14,25 In this paper, we extend the fluid model with a modified EEDF to a 3-D model in order to simulate a simplified plasma limiter prototype.…”

Section: Introductionmentioning

confidence: 99%

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A fluid model simulation of a simplified plasma limiter based on spectral-element time-domain method

et al. 2015

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A simplified plasma limiter prototype is proposed and the fluid model coupled with Maxwell's equations is established to describe the operating mechanism of plasma limiter. A three-dimensional (3-D) simplified sandwich structure plasma limiter model is analyzed with the spectral-element timedomain (SETD) method. The field breakdown threshold of air and argon at different frequency is predicted and compared with the experimental data and there is a good agreement between them for gas microwave breakdown discharge problems. Numerical results demonstrate that the two-layer plasma limiter (plasma-slab-plasma) has better protective characteristics than a one-layer plasma limiter (slab-plasma-slab) with the same length of gas chamber. V C 2015 AIP Publishing LLC.

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Section: Methodsmentioning

confidence: 99%

Section: B Transport Coefficientsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A fluid model simulation of a simplified plasma limiter based on spectral-element time-domain method

et al. 2015

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“…In recent years, the study of high power microwave (HPM) discharges has attracted a lot of attention in connection with many applications including plasma assisted ignition and flame control, aerodynamic drag reduction at high speeds, sterilization of medical instruments, surface flashover in dielectric windows, design of microwave plasma jets, application in plasma propulsion technology, development of advanced radar systems, removal of nitrogen oxides from exhaust gases, generation of ozone, and purification of the earth atmosphere [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. HPM discharges are characterized by a rapid enhancement of the electron number density in a short period of time of the order of a few nanoseconds.…”

Section: Introductionmentioning

confidence: 99%

Energy Balance and Gas Thermalization in a High Power Microwave Discharge in Mixtures

Biabani

Foroutan

2019

IJOP

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The dynamics of fast gas heating in a high power microwave discharge in air, is investigated in the framework of FDTD simulations of the Maxwell equations coupled with the fluid simulations of the plasma. It is shown that, an ultra-fast gas heating of the order of several 100 Kelvins occurs in less than 100 ns. The main role in the heating is played by the electron impact dissociation of 2 O , dissociation via quenching of metastable states of 2 N , as well as, ( ) 1 OD quenching by nitrogen molecules. Among the electronically excited metastable states, ( ) 2 N B, C, a are the most important species. Slow heating of the gas above 1 μs is attributed to the vibrational relaxation processes of 2 N , among them vibrationaltranslational relaxation of 2 N demonstrates the highest heating rate. The heating rate and thus the gas temperature are significantly increased with increasing of the microwave pulse amplitude, pulse width, and the gas pressure. In all cases, enhanced 2 O dissociation is the main factor behind the enhanced gas heating. The same effects are observed for increasing of the initial gas temperature, and 2 O percentage in a 22 N -O mixture.

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“…[5][6][7][8][9][10][11] The fluid model with great advantages in simplicity and speed has been widely used in simulation of gas breakdown caused by the HPM pulse. [12][13][14] Combining Maxwell's equations and the electron fluid equations, Yee et al developed a self-consistent fluid model to study the dynamic behavior of the HPM pulse propagating in air. 14 The electron fluid equations consist of electron density equation, electron momentum equation, and electron energy equation.…”

mentioning

confidence: 99%

Numerical studies of the high power microwave breakdown in gas using the fluid model with a modified electron energy distribution function

et al. 2011

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Propagation of intense microwave pulses in air and in a waveguide

Cited by 29 publications

References 9 publications

A fluid model simulation of a simplified plasma limiter based on spectral-element time-domain method

A fluid model simulation of a simplified plasma limiter based on spectral-element time-domain method

Energy Balance and Gas Thermalization in a High Power Microwave Discharge in Mixtures

Numerical studies of the high power microwave breakdown in gas using the fluid model with a modified electron energy distribution function

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