NASA NTRS · 19910027809
Spectral solution of acoustic wave-propagation problems
Abstract
The Chebyshev spectral collocation solution of acoustic wave propagation problems is considered. It is shown that the phase errors decay exponentially fast and that the number of points per wavelength is not sufficient to estimate the phase accuracy. Applications include linear propagation of a sinusoidal acoustic wavetrain in two space dimensions, and the interaction of a sound wave with the bow shock formed by placing a cylinder in a uniform Mach 4 supersonic free stream.
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Kopriva, David A.. 1990-10-01. Spectral solution of acoustic wave-propagation problems. https://ntrs.nasa.gov/citations/19910027809
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