2014
DOI: 10.11118/actaun201462040757
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Using Neural Networks for Determining Velocity Vectors of Air Flow Visualized by Helium Bubbles

Abstract: One of the important characteristics of air fl ow is the velocity of fl ow. To determine the speed, in addition to other methods, we also use the helium bubbles seeding visualization method, when bubbles are injected into the air stream so that the air fl ow is obvious to the eye. If a video of such fl ow is taken, it is possible to determine velocity vectors in a pair of consecutive frames of this video footage, derived from the change in position of individual bubbles. This article describes a method of moni… Show more

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