Flow rate through a long channel with a rotating damper at the end |
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Authors: | A E Gol’tsman I A Davletshin S A Kolchin N I Mikheev |
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Institution: | 1. Research Center for Power Engineering Problems, Kazan Scientific Center, Russian Academy of Sciences, ul. Lobachevskogo 2/31, Kazan, 420111, Russia
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Abstract: | The experimental data on the flow rate (velocity) of a fluctuating air flow are presented on a wide fluctuation frequency range at a constant pressure difference between the channel entry and exit. The superimposed flow fluctuations were produced by periodic cut-off of the exit section by a rotating damper. A considerable dependence of the mean flow rate (velocity) on the wave structure of the flow is established. A flow rate minimum corresponds to resonance flow modes with a maximum relative amplitude of the flow velocity fluctuations. |
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