VISUALIZATION OF AN OUTFLOW IN THE RADIAL BLADE PASSAGE ON THE BASIS OF THERMOANEMOMETRIC MEASUREMENTS

Authors

  • Stanisław Fortuna AGH University of Science and Technology
  • Tomasz Siwek AGH University of Science and Technology
  • Piotr Figiel AGH University of Science and Technology

Keywords:

blade passage, rotor, flow visualization, thermoanemometric measurements, velocity distribution

Abstract

In this paper results of measurements of velocity distribution in the blade passage of radial rotor are presented. Construction of professional test rig with covered rotor passage and thermoanemometr usage made possible fluid flow visualization and detailed analysis of flow direction. Carried out tests showed high speed in negative pressure region. This means contrast to recently known theory about positive pressure regions. Correctness of measurements and results has been confirmed by smoke visualization and examples of computational simulations.

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References

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Fortuna S., Sobczak K. 2008, Numerical and experimental investigations at the flow in the radial fan. Mechanics, vol. 27, No. 4 (in Polish).

Gawor M., Ligęza P., Rachalski A. 1994, Termoanemometryczne systemy wyznaczania wektora przepływu prędkości gazu. III Konferencja Naukowa „Czujniki optoelektroniczne i elektroniczne" COE '94 (in Polish).

Grudziński M., Grzelczak M., Walczak J. 2003, Analiza struktury przepływu na wlocie i w gardzieli dyfuzora łopatkowego. VI Konferencja Naukowa „Wentylatory przemysłowe", z. 13, Gliwice (in Polish).

Ligęza P. 2001, Układy termoanemometryczne — struktura, modelowanie, przyrządy i systemy pomiarowe. Wydawnictwo AGH, Kraków (in Polish).

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Published

2010-02-06

Issue

Vol. 29 No. 1 (2010)

Section

Articles

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