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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >DETAILED LDV MEASUREMENTS FOR VISUALIZATION OF THE FLOW FIELD WITHIN A STIRRED-TANK REACTOR EQUIPPED WITH A RUSHTON TURBINE
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DETAILED LDV MEASUREMENTS FOR VISUALIZATION OF THE FLOW FIELD WITHIN A STIRRED-TANK REACTOR EQUIPPED WITH A RUSHTON TURBINE

机译：详细的可视化的LDV测量搅拌釜反应器内流场装备拉什顿的涡轮

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摘要

This paper presents the results obtained during investigations carried out on a multifunctional stirrer test rig which was established at the Institute of Fluid Mechanics at the University of Erlangen-Nuremberg. The objective of the research work was to generate a reliable data basis for the validation of numerical simulations of the flow field in stirred-tank reactors. For the measurements advanced laser Doppler velocimetry including full refractive index matching and automated data acquisition was used. The flow field in this case was induced by a Rushton turbine which was constructed of transparent material in order to gain access to the important flow field within the turbine for the first time. The presentation of the large-scale flow field confirms the results presented in previous publications, but a higher resolution was realized. Mean flow and turbulence characteristics are presented. The turbulence length scale L was found to be about half the blade height, which is in good agreement with the length scales reported by other authors for Rushton turbines. The total access to the flow field permitted the mean flow and the turbulence kinetic energy distribution within the stirrer element to be determined in detail. [References: 17]
机译：本文获得的结果调查进行多功能搅拌器在成立的试验装置流体力学研究所的大学此。工作是生成可靠的数据依据验证数值模拟的在搅拌釜反应器流场。先进的激光多普勒测速技术测量包括完整的折射率匹配和使用自动化的数据采集。在这种情况下被拉什顿诱导涡轮是透明的为了获得的重要材料首次涡轮内流场。大规模的流场的表示证实了先前的结果出版物,但更高的分辨率实现。提出了特征。长度L被发现大约一半的规模刀片的高度,这是在良好的协议其他作者报告的长度尺度拉什顿涡轮机。字段允许平均流量和动荡在搅拌器动能分布详细元素决定。17]

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