WAVES IN AN ANNULAR ENTRANCE CHANNEL

Robert A. Dalrymple, James T. Kirby

Abstract


Waves propagating in a curved channel are examined analytically and with a variety of parabolic and spectral models. The results show that the wide angle parabolic method is reasonably robust, but not exact, while a spectral method based on trigonometric functions is superior to a Chebyshev polynomial method. Angular spectrum models are discussed and shown to be equivalent to an eigenfunction expansion in the crosschannel direction.

Keywords


channel; entrance channel; annular entrance channel; channel waves

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