Annotation
А multimode expansion chamber, filled with a moving ideal fluid, is examined. It is shown that the presence of the flow results in the appearance of the real part of the impedance matrix; here the active resistance is different for modes of different order. The flow-filled chamber is regarded as a nonmutual quadripole. Frequency curves of the levels of sound damping by the chamber at different flow velocities.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
P.N. Kravchun, К.V. Chernyshev
Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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