U.S. Department of Energy Office of Scientific and Technical Information
Title: FDEM v.1.0
Software·
OSTI ID:1231483
Algorithm FOEM numerically solves a system of six, coupled, first-order, linear, inhomogeneous partial differential equations (called the "EH-system") with an explicit, time-domain, finite-difference (FD) The six dependent variables three electric field vector components and three magnetic field FOEM vector components) are stored on staggered spatial and temporal grids. Discrete FO operators approximating the partial derivatives possess 2nd-order accuracy in time and Nth-order accuracy in space. The 3D spatial grid is rectangular, and grid intervals are uniform in each coordinate direction. FD formulae for updating the wavefield variables are appropriately non-dimensionalized and normalized so that single-precision arithmetic calculations yield adequate accuracy. This software will be used to generate electromagnetic responses for typical geological/geophysical models of interest in the petroleum, mining, geotechnical, geothermal, hydrological, environmental assessment, and underground storage industries. Additionally, US government agencies (including the military) involved in monitoring of explosions (chemical or nuclear) or remote surveillance of underground facilities may be interested in using algorithm FOEM. Finally, this software may be of use to organizations involved in fundamental research and applications development in the area of electromagnetic wave propagation (e.g. national laboratories, academic departments. industry).
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@misc{osti_1231483,
title = {FDEM v.1.0, Version 00},
author = {},
abstractNote = {Algorithm FOEM numerically solves a system of six, coupled, first-order, linear, inhomogeneous partial differential equations (called the "EH-system") with an explicit, time-domain, finite-difference (FD) The six dependent variables three electric field vector components and three magnetic field FOEM vector components) are stored on staggered spatial and temporal grids. Discrete FO operators approximating the partial derivatives possess 2nd-order accuracy in time and Nth-order accuracy in space. The 3D spatial grid is rectangular, and grid intervals are uniform in each coordinate direction. FD formulae for updating the wavefield variables are appropriately non-dimensionalized and normalized so that single-precision arithmetic calculations yield adequate accuracy. This software will be used to generate electromagnetic responses for typical geological/geophysical models of interest in the petroleum, mining, geotechnical, geothermal, hydrological, environmental assessment, and underground storage industries. Additionally, US government agencies (including the military) involved in monitoring of explosions (chemical or nuclear) or remote surveillance of underground facilities may be interested in using algorithm FOEM. Finally, this software may be of use to organizations involved in fundamental research and applications development in the area of electromagnetic wave propagation (e.g. national laboratories, academic departments. industry).},
doi = {},
url = {https://www.osti.gov/biblio/1231483},
year = {Fri May 27 00:00:00 EDT 2011},
month = {Fri May 27 00:00:00 EDT 2011},
note =
}
