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Modeling the transition to turbulence in shear flows

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Barkley, Dwight (2011) Modeling the transition to turbulence in shear flows. Journal of Physics: Conference Series, Vol.318 (No.3). 032001. doi:10.1088/1742-6596/318/3/032001

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Official URL: http://dx.doi.org/10.1088/1742-6596/318/3/032001

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Abstract

One-dimensional models are presented for transitional shear flows. The models have two variables corresponding to turbulence intensity and mean shear. These variables evolve according to simple equations based on known properties of transitional turbulence. The first model considered is for pipe flow. A previous study modeled turbulence using a chaotic tent map. In the present work turbulence is modeled instead as multiplicative noise. This model captures the character of transitional pipe flow and contains metastable puffs, puff splitting, and slugs. These ideas are extended to a limited model of plane Couette flow.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Mathematics
Journal or Publication Title: Journal of Physics: Conference Series
Publisher: Institute of Physics Publishing Ltd.
ISSN: 1742-6596
Official Date: 2011
Dates:
DateEvent
2011Published
Volume: Vol.318
Number: No.3
Page Range: 032001
DOI: 10.1088/1742-6596/318/3/032001
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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