ON THE WAKE TRANSITION IN THE FLOW PAST A CIRCULAR CYLINDER AT CRITICAL REYNOLDS NUMBERS

被引：0
|
作者：
Rodriguez, Ivette [1 ]
Lehmkuhl, Oriol [1 ,2 ]
Chiva, Jorge [1 ]
Borrell, Ricard [1 ,2 ]
Oliva, Assensi [1 ]
机构：
[1] Univ Politecn Catalunya BarcelonaTech UPC, Heat & Mass Transfer Technol Ctr CTTC, Colom 11, Terrassa 08222, Barcelona, Spain
[2] Termo Fluids SL, Terrassa 08222, Barcelona, Spain
来源：
11TH WORLD CONGRESS ON COMPUTATIONAL MECHANICS; 5TH EUROPEAN CONFERENCE ON COMPUTATIONAL MECHANICS; 6TH EUROPEAN CONFERENCE ON COMPUTATIONAL FLUID DYNAMICS, VOLS V - VI | 2014年
关键词：
drag crisis; wake topology; unsteady forces; vortex shedding; TURBULENT; DYNAMICS; SPHERE;
D O I：
暂无
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper advanced turbulence simulations at Reynolds numbers in the range of 1.4 x 10(5)-8.5 x 10(5) will be carried out by means of large-eddy simulations. Numerical simulations using unstructured grids up to 90 million of control volumes have been performed on Marenostrum Supercomputer. One of the major outcomes of this work is to shed some light on the wake topology and flow features at critical and supercritical Reynolds numbers, whilst at the same time to study the shear layer instabilities mechanisms and their role on the drag crisis phenomena.
引用
收藏
页码：5520 / 5527
页数：8
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