Accession Number:

AD1043425

Title:

Time-Domain Full-Wave Modeling of Nonlinear Air Breakdown in High-Power Microwave Devices and Systems

Personal Author(s):

Corporate Author:

University of Illinois Center for Computational Electromagnetics Urbana United States

Report Date:

2017-09-30

Abstract:

This final report describes the effort to develop a discontinuous Galerkin time-domain DGTD method in the simulation of high-power microwave air breakdown phenomena, which are modeled by a coupled electromagnetic--plasma system. In the coupled system, the electromagnetic fields are governed by Maxwells equations and the plasma is modeled by the five moment fluid equations Eulers equations. The non-Maxwellian electron energy distribution function EEDF is used to calculate electron transport coefficients and describe the non-equilibrium collision reactions between electrons and neutral air particles. The coupled Maxwell--Euler equations are solved by the DGTD method with high-order spatial and temporal discretizations, which are able to provide a sufficient resolution for the physical quantities in both space and time. Several numerical examples are presented to investigate the physical process and demonstrate the capability of the numerical method.

Descriptive Note:

Technical Report,31 Aug 2016,31 Aug 2017

Pages:

0042

Descriptors:

Identifiers:

Subject Categories:

Distribution Statement:

Approved For Public Release;

Contract Number:

FA9451-16-1-0051

File Size:

3.62MB

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