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Microsystem Technologies

, Volume 21, Issue 3, pp 527–537 | Cite as

Micro molecular tagging velocimetry for analysis of gas flows in mini and micro systems

  • Feriel Samouda
  • Stéphane Colin
  • Christine Barrot
  • Lucien Baldas
  • Juergen J. Brandner
Technical Paper

Abstract

A new micro molecular tagging velocimetry (μMTV) setup has been developed to analyze velocity fields in confined internal gas flows. MTV is a little-intrusive velocimetry technique. It relies on the properties of molecular tracers which can experience relatively long lifetime luminescence once excited by a laser beam with an appropriate wavelength. The technique has been validated for acetone seeded flows of argon inside a 1 mm depth rectangular minichannel, with a multilayer design offering two optical accesses. Velocity profiles have been obtained using a specific data reduction process, with a resolution in the order of 15 μm. The experimental data are compared to theoretical velocity profiles of compressible pressure-driven flows. A good agreement is observed, except close to the walls, where the accuracy would still need to be improved. Following these first results obtained at atmospheric pressure, the influence of pressure on the luminescence intensity of acetone molecules is analyzed. The obtained data lead to a discussion of MTV applicability to rarefied flows and its possible use for a direct measurement of velocity slip at the channel walls.

Keywords

Particle Image Velocimetry Acetone Molecule Biacetyl Velocimetry Technique Measured Slip 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This research obtained financial support from the European Community’s Seventh Framework Program (FP7/2007-2013) under grant agreement no 215504 and from the Fédération de Recherche Fermat, FR 3089.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Feriel Samouda
    • 1
  • Stéphane Colin
    • 1
  • Christine Barrot
    • 1
  • Lucien Baldas
    • 1
  • Juergen J. Brandner
    • 2
  1. 1.INSA, UPS, Mines Albi, ISAE, ICAUniversité de ToulouseToulouseFrance
  2. 2.Karlsruhe Institute of Technology, Institute for Micro Process EngineeringEggenstein-LeopoldshafenGermany

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