Measurements And CFX-simulations Of A
Bubbly Flow In A Vertical Pipe
Author(s)
E. Krepper & H-M. Prasser
Abstract
In the Forschungszentrum Rossendorf a measurement techniques test loop was
constructed. Air was injected into an upward vertical water flow at normal con-
ditions applying different injection modes. The annular test section had a diameter
of about 50 mm and a length of about 4 m. The air water flow was investigated us-
ing different two phase flow measuring techniques. Different tests with different
relations of air and water superficial velocity were performed. For each test sta-
tionary conditions were settled.
Applying a wire mesh sensor, developed in FZR, the cross section of the void
fraction could be determined. The time resolution achieved by the signal process-
ing unit is 1024 frames per second. The spatial resolution equals 3 mm. At the in-
vestigated flow velocities, the bubble diameter distributio
Keywords
Related Book
Other papers in this volume
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