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Investigation of a Cup Anemometer in Oblique Flow for Measurement of Wind Velocity in Offshore Installations in the Field of Aquaculture

[+] Author Affiliations
Hans-Joachim Winkel, Mathias Paschen, Mario Jensch

University of Rostock, Rostock, Germany

Paper No. OMAE2007-29526, pp. 715-720; 6 pages
doi:10.1115/OMAE2007-29526
From:
  • ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 4: Materials Technology; Ocean Engineering
  • San Diego, California, USA, June 10–15, 2007
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4270-3 | eISBN: 0-7918-3799-8
  • Copyright © 2007 by ASME

abstract

In Germany the combination of environmentally friendly changed wind energy with aquaculture is seen as an opportunity for multiple use of natural marine resources. Loads and stresses of “open ocean” offshore installations depend on wind velocity. For measurements of wind velocity within the field of wind energy conversion the only cost effective device is the cup anemometer. It has a linear relation between number of revolutions and velocity. Questionable is the measuring result if the wind vector is not within the ‘measuring plane’. Results of CFD calculations of the flow around an anemometer cup are given. With the force coefficients (lift and drag coefficients) an anemometer in inclined flow is calculated. It will be shown that the measured velocity within the measuring plane is higher than the cosine component of velocity.

Copyright © 2007 by ASME

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