2D-measurement technique for simultaneous quantitative determination of mixing ratio and velocity field in microfluidic applications

Title2D-measurement technique for simultaneous quantitative determination of mixing ratio and velocity field in microfluidic applications
Publication TypeIn Collection
Year of Publication2009
AuthorsBeushausen, V, Roetmann, K, Schmunk, W, Wellhausen, M, Garbe, CS, Jähne, B
EditorNitsche, W, Dobriloff, C
Collection TitleImaging Measurement Methods for Flow Analysis, Results of the DFG Priority Programme 1147 Imaging Measurement Methods for Flow Analysis 2003-2009
Volume106
Pages155--164
PublisherSpringer
Publication Languageeng
Abstract

Two-dimensional Molecular-Tagging-Velocimetry (2D-MTV) has been used to investigate velocity fields of liquid flow in a micro mixer. Optical tagging was realized by using caged dye. For the first time patterns were generated by structured laser illumination using optical masks. This allows the generation of nearly any imaginable pattern. The flow induced deformation of the optically written pattern is tracked by imaging of laser induced fluorescence. Quantitative analysis of raw image series is carried out by novel optical flow based techniques. A comparison to the standard technique of uPIV has also been conducted. Additionally Planar Spontaneous Raman Scattering (PSRS) was applied in order to determine concentration fields for mixtures of ethanol and water.

DOI10.1007/978-3-642-01106-1_16
Series

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

Citation Keybeushausen2009