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Displacement effect of square-ended pitot tubes in shear flows

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Abstract

Measurements in uniformly sheared flows indicate that the displacement of total-pressure tube readings due to shear is roughly constant, even for values of the shear parameter smaller than previously believed.

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Abbreviations

D :

tube outer diameter

d :

tube inner diameter

h :

wind-tunnel height

K :

tube shear parameter

K r :

reference tube shear parameter

L :

characteristic scale of turbulence

P :

pressure

P D :

total pressure indicated by tube of diameter D

P 0 :

free stream total pressure

P r :

total pressure indicated by reference tube

P s :

pressure indicated by static pressure tube

U :

mean velocity

U c :

centerline mean velocity

U D :

mean velocity indicated by tube of diameter D

U r :

mean velocity indicated by reference tube

u ′ :

r.m.s. velocity

y :

transverse coordinate

α:

empirical coefficient

β:

wind-tunnel shear parameter

δ:

displacement

ϱ :

fluid density

References

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Authors and Affiliations

  1. Dept. of Mechanical Engineering, University of Ottawa, K1N 6N5, Canada

    S. Tavoularis & M. Szymczak

Authors
  1. S. Tavoularis
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  2. M. Szymczak
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Tavoularis, S., Szymczak, M. Displacement effect of square-ended pitot tubes in shear flows. Experiments in Fluids 7, 33–37 (1989). https://doi.org/10.1007/BF00226594

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  • DOI: https://doi.org/10.1007/BF00226594

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