Lammers P, Jovanovic J, Delgado A (2011)
Publication Type: Journal article
Publication year: 2011
Publisher: Springer Verlag (Germany)
Book Volume: 11
Pages Range: 129-136
Journal Issue: 2
URI: http://www.springerlink.com/content/gk75721w355851w4/fulltext.pdf
DOI: 10.1007/s10404-011-0779-4
A fully resolved numerical simulation of a turbulent microchannel flow, with uniformly spaced twodimensional obstruction elements mounted at the wall and normal to the flow direction, was carried out at a very low Reynolds number ofRe 970 based on the centerline velocity and themicrochannel height.Employing the latticeBoltzmann numerical technique, all energetic scales of turbulence were resolved with about 19 × 10 6 grid points (1261 × 129 × 128 in the x 1, x 2, and x3 directions). The simulated results confirm the self-maintenance of turbulence at such a low Reynolds number. Turbulence persisted over more than 1,000 turnover times, which was sufficiently long to prove its self-maintenance. These findings support the conjecture that turbulence developing in microchannels having rough walls can not only be initiated but alsomaintained at very lowReynolds numbers. © Springer-Verlag 2011.
APA:
Lammers, P., Jovanovic, J., & Delgado, A. (2011). Persistence of turbulent flow in microchannels at very low Reynolds numbers. Microfluidics and Nanofluidics, 11(2), 129-136. https://doi.org/10.1007/s10404-011-0779-4
MLA:
Lammers, Peter, Jovan Jovanovic, and Antonio Delgado. "Persistence of turbulent flow in microchannels at very low Reynolds numbers." Microfluidics and Nanofluidics 11.2 (2011): 129-136.
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