期刊
CHEMICAL ENGINEERING JOURNAL
卷 179, 期 -, 页码 338-348出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2011.11.016
关键词
Raman imaging; Light sheets; Micro mixer; CFD
Micro structured components for process engineering have gained increasing importance in chemical, pharmaceutical and life sciences applications. Understanding of mixing processes in those devices is of fundamental interest for their performance. Raman imaging with light sheets is a powerful tool to visualize concentration profiles. For the first time planar Raman imaging is combined with computational fluid dynamic (CFD) calculations to analyze the concentration of two components at the outlet of a micro mixer. The mixing process was monitored within an attached quartz cuvette. The laser light sheet had a thickness of 0.5 mm and a width of 10 mm matching the inner width of the cuvette. In this investigation ethanol and water were mixed. We present measured concentration maps within 10 mm x 10 mm using single shot laser pulses (6 ns). The lateral resolution is only determined by the pixel size of the CCD camera. Standard deviations and averaged data of the concentration profiles are compared with CFD calculations. The computations were done for a laminar flow at constant temperature under non-steady-state conditions. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据