A New Eulerian Computational Method For The
Propagation Of Short Acoustic And
Electromagnetic Pulses
Author(s)
J. Steinhoff, M. Fan & L. Wang.
Abstract
A new method is described to compute short acoustic or electromagnetic
pulses that propagate according to geometrical optics. The pulses are
treated as zero thickness sheets that can propagate over long distances
through inhomogeneous media with multiple reflections. The method has
many of the advantages of Lagrangian ray tracing, but is completely Eu-
lerian, typically using a uniform Cartesian grid. Accordingly, it can treat
arbitrary configurations of pulses that can reflect from surfaces and pass
through each other without requiring special computational marker arrays
for each pulse. Also, information describing the pulses, which are treated
as continuous surfaces, can be available throughout the computational grid,
rather than only at isolated individual markers. The method uses a new
type of representation, which we call "Dynamic Surfa
Keywords
Related Book
Other papers in this volume
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