Accession Number:

ADA370145

Title:

Upgrading the Field-Particle Physics and Numerics of PIC Codes for HPM Tube Design

Descriptive Note:

Final rept. 1 Aug 98-31 Jul 99

Corporate Author:

ARIZONA UNIV TUCSON DEPT OF ELECTRICALAND COMPUTER ENGINEERING

Report Date:

1999-10-26

Pagination or Media Count:

24.0

Abstract:

The primary objective of this contract was to develop an understanding from first principles of the macroscopic particle force equation arising from the microscopic particle and field interaction dynamics and to incorporate those effects in a self consistent state space rate equation particle in cell PIC calculation. Effective current and charge density time domain equation models were to be developed from this generalized Lorentz force model. Also to be developed in this project were the numerical modeling techniques that would allow the self consistent coupling of the particle motions and the evolution of the electromagnetic fields in the presence of complex electromagnetic scatterers. The resulting simulators were to be applied to a variety of high power microwave HPM source configurations. The specific tasks considered during the contract period included 1 develop a generalized Lorentz force equation to include self forces on the particles and to develop its equivalent current and charge rate equations directly in the space time domain 2 develop the PIC tools and techniques for modeling the interaction of intense electromagnetic fields with one on several particles in one, two, and three space dimensions and time 3 apply the resulting simulators to study the generation of microwaves in a HPM source cavity, particularly by predicting any additional microscopically derived force effects on a large number of charged particles and 4 apply the resulting simulators to study a many particle plasma system typically found in HPM sources.

Subject Categories:

  • Electrical and Electronic Equipment
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE