Generating a very rough turbulent boundary layer in wind tunnel Wotan, Meteorological Institute, Hamburg
2009
Abstract
Aim of this project is to develop turbulent boundary layer with characteristic parameters belonging to the category called 'very rough' or 'rough' derived from a Snyder's classification Guideline For Fluid Modeling (1981). The experiment is conducted in low-speed open-circuit wind-tunnel Wotan of Meteorological Institute of Hamburg University in Germany.
The primary goal was to attain a very rough turbulent boundary layer that would have been established in the tunnel for the very first time. Whole experimental set-up had to be designed and verified before an experiment could have been executed.
The verification procedure is based on velocity measurement performed with 2-D component fibre optic laser Doppler anemometry.