Experimental investigation of the 3D unsteady flow field downstream of axial fans

This experimental study, applied to axial fans with three different types of sweep (backward, radial and forward), aims at quantifying the 3D structure of the flow field from unsteady velocity measurements. The hot-wire anemometry is used to measure the velocity components in the nearfield, downstre...

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Bibliographic Details
Published in:Flow measurement and instrumentation 2006-10, Vol.17 (5), p.303-314
Main Authors: Kergourlay, Gérald, Kouidri, Smaïne, Rankin, Gary W., Rey, Robert
Format: Article
Language:English
Subjects:
3D flow field
Axial fans
Hot-wire anemometry
Reynolds’ stress tensor
Sweep
Turbomachines
Turbulence
Unsteady velocity measurements
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Summary:This experimental study, applied to axial fans with three different types of sweep (backward, radial and forward), aims at quantifying the 3D structure of the flow field from unsteady velocity measurements. The hot-wire anemometry is used to measure the velocity components in the nearfield, downstream of the fans. The data analysis leading to averaged and turbulent velocities, the components of the Reynolds’ stress tensor and the turbulent kinetic energy is presented in order to illustrate the influence of the sweep. A spectral analysis is also performed.
ISSN:0955-5986
1873-6998
DOI:10.1016/j.flowmeasinst.2006.05.002