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- Title
Visualization and measurements of flows in micro silicon Y-channels.
- Authors
Kolaas, Jostein; Jensen, Atle; Mielnik, Michal
- Abstract
Velocities and accelerations are measured and visualized in silicon microchannels using particle tracking velocimetry (PTV). Both pulsatile and stationary flows are generated in channels with different geometry. Distinct differences between flow regimes and geometries are shown. Flow separation occurred at Re = 84 for the channel with an expanded bifurcation shown by streamlines from long exposed images. Moving least squares are used to find the ensemble-averaged positions of the measured velocities from tracking. This is needed to find the local and convective accelerations. Graphical abstract:
- Subjects
PARTICLE tracking velocimetry; MICROCHANNEL flow; LEAST squares; IMAGE analysis; SEPARATION (Technology)
- Publication
European Physical Journal E -- Soft Matter, 2013, Vol 36, Issue 2, p1
- ISSN
1292-8941
- Publication type
Article
- DOI
10.1140/epje/i2013-13019-x