Volker Beushausen

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The two dimensional molecular tagging velocimetry (2D-MTV) has been used to measure velocity fields of the flow in a micro mixer. Instead of commonly used micro particles an optical tagging of the flow has been performed by using a caged dye. The pattern generation is done by imaging a mask for the first time. This allows to generate nearly any imaginable(More)
A concept for dynamic mixture formation investigations of fuel/air mixtures is presented which can also be applied for many other laser induced fluorescence (LIF) applications. Double-pulse LIF imaging was used to gain insight into dynamic mixture formation processes. The setup consists of a modified standard PIV setup. The " fuel/air ratio measurement by(More)
Zusammenfassung Die zweidimensionale Molecular Tagging Velocimetry (MTV) ist eine partikelfreie Alternative zu herkömmlichen Strömungsmessverfahren wie PIV und PTV. Sowohl bei der Generierung der Bilddaten als auch bei der Auswertung werden neue Wege gegangen, die in diesem Bei-trag beschrieben werden. Anstatt Partikel als Strömungsmarker zu verwenden, wird(More)
These investigations aim to validate the applicability of a concept for fuel-air-ratio measurements by laser-induced fluorescence (FARLIF) at elevated temperatures. For the commonly used model fuel isooctane with the fluorescence tracer toluene the FARLIF applicability was confirmed with an excitation wavelength of 266 nm for fuel-air mixtures with λ ≥ 0.2(More)
Laser induced fluorescence is used to develop a 2D measurement technique for mixture formation analysis of fuel and air in a broad temperature regime from 398 K up to 548 K. The measurement principle is called FARLIF (fuel-air ratio by laser-induced fluorescence). Its application is tested on the tracer toluene in the non-fluorescent model fuel isooctane as(More)
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(More)
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