Three-dimensional LDA measurements in the impeller region of a turbulently stirred tank

被引：0
|
作者：
J.J. Derksen*
M.S. Doelman
H.E.A. Van den Akker
机构：
[1] Kramers Laboratorium voor Fysische Technologie,
[2] Delft University of Technology,undefined
[3] Prins Bernhardlaan 6,undefined
[4] NL-2628 BW Delft; Netherlands,undefined
来源：
Experiments in Fluids | 1999年 / 27卷
关键词：
Vortex; Anisotropy; Flow Field; Reynolds Stress; Vortex Structure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Three-dimensional, angle-resolved LDA measurements of the turbulent flow field (Re = 2.9 × 104) in the vicinity of a Rushton turbine in a baffled mixing tank have been performed. For this goal, a procedure for accurate beam alignment, based on a submerged micro-mirror system, has been developed. Results on the average flow field as well as on the complete set of Reynolds stresses are presented. The anisotropy of the turbulence has been characterized by the invariants of the anisotropy tensor. The trailing vortex structure, which is characteristic for the flow induced by a Rushton turbine, is demonstrated to be associated with strong, anisotropic turbulent activity.
引用
收藏
页码：522 / 532
页数：10
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