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I.V.Vovk, V.S.Malyuga Sound field generated by the flow in a duct with stenoses |
Applied hydromechanics, Vol. 14 (86) ¹ 1, (2012) |
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The problem of sound radiation by the flow in a flat duct with two
consecutive stenoses is addressed. Self-oscillations of the flow may occur
in the inter-stenoses area and be the source of the sound vibrations in the
duct. The acoustic problem is solved for two domains: for the homogeneous
flat duct situated downstream from the second stenosis and also for the
domain with geometrical irregularities situated upstream from the second
stenosis. The method of partial domains is used for the solution of the
latter problem.
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KEY WORDS: sound field, flat duct, geometrical irregularities, method of partial domains |
| TEXT LANGUAGE: Russian |