Specification of a wave packet using initial data in a round cylindric channel for linear acoustic problems
We discuss how to prescribe a wave packet in a round cylindric channel as an initial data. We consider non-zero azimuthal or radial wave numbers. Parameters of the wave packet are chosen for convenience in numerical simulaition. Explicit expressions for initial data and pressure spectrum are presented.
channel with flow, sound field, initial conditions, spectrum
Publication language:russian, страниц:23
Mathematical modelling in actual problems of science and technics