Journal of Dynamics and VibroacousticsJournal of Dynamics and Vibroacoustics2409-4579Samara National Research University164810.18287/2409-4579-2014-1-1-12-16UnknownExperimental and numerical flow noise modeling of flow channelsin hydraulic componentsKryuchkovA. N.kan@ssau.ruErmilovM. A.pas@ssau.ruBerestovitskyE. G.mail@avrorasystems.comKizilovP. I.mail@avrorasystems.com220620141112162207201422072014Copyright © 2015, Journal of Dynamics and Vibroacoustics2015<p><em>Acoustic parameters of HN emission by perforated sleeve-dissector in outlet flow are investigated in details.</em><br /><em>Experimental and numerical research of influence of flow channel configuration of perforation holes on flow noise density is done. Acoustic characteristics of different forms of channelslike diffuser, confusor and cylinder are studied. It is shown, that the most rational form of channel is cylinder, which have the minimal flow coefficient.</em></p>valvolahydrodynamic noiserompigettoflow coefficientexperimentnumerical modelingКлапангидродинамический шумрассекатель потока коэффициент пропускной способностиэкспериментчисленное моделирование