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Title: EMPHASIS/Nevada UTDEM user guide. Version 2.0.

Abstract

The Unstructured Time-Domain ElectroMagnetics (UTDEM) portion of the EMPHASIS suite solves Maxwell's equations using finite-element techniques on unstructured meshes. This document provides user-specific information to facilitate the use of the code for applications of interest. UTDEM is a general-purpose code for solving Maxwell's equations on arbitrary, unstructured tetrahedral meshes. The geometries and the meshes thereof are limited only by the patience of the user in meshing and by the available computing resources for the solution. UTDEM solves Maxwell's equations using finite-element method (FEM) techniques on tetrahedral elements using vector, edge-conforming basis functions. EMPHASIS/Nevada Unstructured Time-Domain ElectroMagnetic Particle-In-Cell (UTDEM PIC) is a superset of the capabilities found in UTDEM. It adds the capability to simulate systems in which the effects of free charge are important and need to be treated in a self-consistent manner. This is done by integrating the equations of motion for macroparticles (a macroparticle is an object that represents a large number of real physical particles, all with the same position and momentum) being accelerated by the electromagnetic forces upon the particle (Lorentz force). The motion of these particles results in a current, which is a source for the fields in Maxwell's equations.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1029810
Report Number(s):
SAND2011-6644
TRN: US201201%%219
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; EQUATIONS OF MOTION; COMPUTERS; COMPUTER CODES; PROGRAMMING

Citation Formats

Turner, C David, Seidel, David Bruce, and Pasik, Michael Francis. EMPHASIS/Nevada UTDEM user guide. Version 2.0.. United States: N. p., 2011. Web. doi:10.2172/1029810.
Turner, C David, Seidel, David Bruce, & Pasik, Michael Francis. EMPHASIS/Nevada UTDEM user guide. Version 2.0.. United States. https://doi.org/10.2172/1029810
Turner, C David, Seidel, David Bruce, and Pasik, Michael Francis. 2011. "EMPHASIS/Nevada UTDEM user guide. Version 2.0.". United States. https://doi.org/10.2172/1029810. https://www.osti.gov/servlets/purl/1029810.
@article{osti_1029810,
title = {EMPHASIS/Nevada UTDEM user guide. Version 2.0.},
author = {Turner, C David and Seidel, David Bruce and Pasik, Michael Francis},
abstractNote = {The Unstructured Time-Domain ElectroMagnetics (UTDEM) portion of the EMPHASIS suite solves Maxwell's equations using finite-element techniques on unstructured meshes. This document provides user-specific information to facilitate the use of the code for applications of interest. UTDEM is a general-purpose code for solving Maxwell's equations on arbitrary, unstructured tetrahedral meshes. The geometries and the meshes thereof are limited only by the patience of the user in meshing and by the available computing resources for the solution. UTDEM solves Maxwell's equations using finite-element method (FEM) techniques on tetrahedral elements using vector, edge-conforming basis functions. EMPHASIS/Nevada Unstructured Time-Domain ElectroMagnetic Particle-In-Cell (UTDEM PIC) is a superset of the capabilities found in UTDEM. It adds the capability to simulate systems in which the effects of free charge are important and need to be treated in a self-consistent manner. This is done by integrating the equations of motion for macroparticles (a macroparticle is an object that represents a large number of real physical particles, all with the same position and momentum) being accelerated by the electromagnetic forces upon the particle (Lorentz force). The motion of these particles results in a current, which is a source for the fields in Maxwell's equations.},
doi = {10.2172/1029810},
url = {https://www.osti.gov/biblio/1029810}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2011},
month = {Thu Sep 01 00:00:00 EDT 2011}
}