Properties of the fluid flow in a cylindrical duct with stenoses

TitleProperties of the fluid flow in a cylindrical duct with stenoses
Publication TypeJournal Article
Year of Publication2017
AuthorsVovk, IV, Trotsenko, Ya.P
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
DOI10.15407/dopovidi2017.09.033
Issue9
SectionMechanics
Pagination33-40
Date Published9/2017
LanguageUkrainian
Abstract

The flow of a viscous incompressible fluid in a cylindrical duct with two serial contractions (stenoses) is studied by the numerical solution of unsteady Navier—Stokes equations. It is shown that an ensemble of vortex  structures develops in the system that causes stable periodic self-sustained oscillations of the velocity profile at the outlet of the second stenosis orifice.
Keywordsduct with stenoses, self-sustained oscillations, vortex structures
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