Phys. Rev. Lett. 93, 154503 (2004) [4 pages]

Velocity Imaging of Highly Turbulent Gas Flow

Abstract

References

Citing Articles (18)

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Benedict Newling^1,*, Christopher C. Poirier¹, Yang Zhi¹, James A. Rioux¹, Andrew J. Coristine^1,†, Dale Roach², and Bruce J. Balcom¹
¹MRI Centre, Department of Physics, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada NB E3B 5A3
²Department of Engineering, K. C. Irving Hall, University of New Brunswick, Saint John, New Brunswick, Canada

Received 17 March 2004; published 5 October 2004

We introduce a noninvasive, quantitative magnetic resonance imaging (MRI) wind-tunnel measurement in flowing gas (>10 m s^-1) at high Reynolds numbers (Re>10⁵). The method pertains to liquids and gases, is inherently three dimensional, and extends the range of Re to which MRI is applicable by orders of magnitude. There is potential for clear time savings over traditional pointwise techniques. The mean velocity and turbulent diffusivity of gas flowing past a bluff obstruction and a wing section at realistic stall speeds were measured. The MRI data are compared with computational fluid dynamics.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.93.154503

DOI:

10.1103/PhysRevLett.93.154503

PACS:

47.27.–i, 47.17.+e, 47.80.+v, 87.61.–c

^*Electronic addresses: bnewling@unb.ca

http://www.unb.physics/mri

^†Present address: Dept. of Med. Phys., University of Western Ontario, Ontario, Canada.

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Phys. Rev. Lett. 93, 154503 (2004) [4 pages]

Velocity Imaging of Highly Turbulent Gas Flow