文章基本信息

标题：Flow around a confined cylinder: LES and PIV study
本地全文：下载
作者：Egor Palkin ; Egor Palkin ; Mikhail Shestakov 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：115
页码：1-4
DOI：10.1051/matecconf/201711502010
语种：English
出版社：EDP Sciences
摘要：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.