Flow around a confined cylinder: LES and PIV study

Autor:	Kemal Hanjalic, Mikhail Shestakov, Rustam Mullyadzhanov, E. Palkin, D. M. Markovich
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	Bubble Flow (psychology) Mechanical engineering Reynolds number Laminar flow Mechanics Physics::Fluid Dynamics symbols.namesake Particle image velocimetry lcsh:TA1-2040 Horseshoe vortex symbols Cylinder Inflow velocity lcsh:Engineering (General). Civil engineering (General)
Zdroj:	MATEC Web of Conferences, 115 MATEC Web of Conferences, Vol 115, p 02010 (2017)
ISSN:	2261-236X
Popis:	We study the flow over a cylinder placed between two parallel rigid walls using Large-eddy simulations and Particle Image Velocimetry. The Reynolds number based on the inflow velocity and diameter of the cylinder is 3750 corresponding to the subcritical regime with laminar separation. Three-dimensional visualization shows the presence of the horseshoe vortex system prior to the cylinder. The comparison of time-averaged velocity fields and fluctuations shows good agreement between simulations and experiments. Spectral analysis suggests the presence of low-frequency modulations of the recirculating bubble.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0344affe2bc56e46ebbc70bb2d5560b http://resolver.tudelft.nl/uuid:31f2918e-ff21-45fa-a452-073102a0acd7 Zobrazit plný text záznamu