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Experiments in Fluids

Erschienen in:

01.02.2009 | Research Article

Three-dimensional magnetic resonance velocimetry measurements of turbulence quantities in complex flow

verfasst von: Christopher J. Elkins, Marcus T. Alley, Lars Saetran, John K. Eaton

Erschienen in: Experiments in Fluids | Ausgabe 2/2009

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Abstract

A magnetic resonance velocimetry (MRV) experimental technique based on magnetic resonance imaging and capable of measuring the turbulent Reynolds stresses in a 3D flow domain is described. Results are presented in backward facing step flow in a square channel with a Reynolds number of 48,000 based on step height and freestream velocity at the step. MRV results are compared to particle image velocimetry (PIV) measurements in the centerplane containing the streamwise and cross-stream axes. MRV and PIV mean velocity measurements show excellent agreement. MRV measurements for Reynolds normal stresses compare to within ±20% of the PIV results while results for the turbulent shear are less accurate.

Vorheriger Artikel In-cylinder engine flow measurement using stereoscopic molecular tagging velocimetry (SMTV)

Nächster Artikel Array measurements of the surface pressure beneath a forced axi-symmetric separation bubble

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Titel: Three-dimensional magnetic resonance velocimetry measurements of turbulence quantities in complex flow
verfasst von: Christopher J. Elkins
Marcus T. Alley
Lars Saetran
John K. Eaton
Publikationsdatum: 01.02.2009
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 2/2009
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-008-0559-4

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