Open AccessTransition to turbulence in confined flow over a cylinder with low aspect ratio
Author(s) -
Egor Palkin,
Rustam Mullyadzhanov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012027
Subject(s) - turbulence , laminar flow , wake , mechanics , reynolds number , cylinder , physics , flow (mathematics) , duct (anatomy) , open channel flow , potential flow around a circular cylinder , materials science , geometry , mathematics , anatomy , medicine
We report on Large-eddy simulations (LES) of a flow around a cylinder in a narrow duct channel at the Reynolds number of 2 000, 3 000 based on the bulk velocity and diameter of the cylinder. We investigate a mechanism of the transition occurring from steady laminar flow at Re = 2 000 to turbulent flow at Re = 3 000 with attached recirculation zone and thin sinusoidal far wake.