Modelling of aero-acoustic wave propagation in low Mach number corrugated pipe flow
by Mihaela Popescu, Stein Tore Johansen
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 9, No. 6/7, 2009

Abstract: This paper sets out to investigate parameters that determine flow-induced vibrations in flexible, corrugated pipes. A central element in this paper is a mathematical model that describes the phenomenon. The presented model is designed to capture the aero-acoustic wave behaviour of gas that flows in a corrugated pipe, exploring the feedback analysis. This model involves the coupling between the large-scale acoustic behaviour in a pipe and a line of self-excited oscillators representing vortex excitation caused by flow over corrugations.

Online publication date: Tue, 21-Jul-2009

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