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Development of computational fluid dynamics (CFD) based time-domain algorithms for Maxwell's equations

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3 Author(s)
Shankar, V. ; Rockwell Int. Sci. Center, Thousand Oaks, CA, USA ; Hall, W.F. ; Mohammadian, A.H.

A general time-domain approach based on proven CFD-based numerical techniques which can capture all the relevant details of the scattering structure, including nonmetallic sections, gaps and cracks, cavities and inlets, antenna arrays, and exhaust plumes, in a single computational framework has been developed. Some of the salient features of this new Maxwell's equation solver are a time-domain approach which can handle continuous wave (single frequency) and pulse (broadband); adaption of CFD-based proven algorithms (characteristic theory, Riemann solvers, higher order accuracy); layered media treatment (magnetic, dielectric, resistive); body-fitted mapping for complex geometry treatment (multizone gridding); frequency- and time-dependent material properties; thin sheets (resistive, lossy coatings); pre- and postprocessors with color graphics and animation; vectorization for supercomputers; and suitability for CFD/radar cross section/aeroelasticity/controls coupling studies.<>

Published in:

Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.

Date of Conference:

7-11 May 1990