This paper presents the application of acoustic Doppler current profiler as a tool for adjustment and validation of computational fluid dynamic models in river environment. The two tailraces of the Tucurui hydro power plant present strong differences. The bed of the left tailrace has a high bank and a curvature oriented towards the right. Thus, an initial analysis of the overall dynamics points to the potential existence of local circulation, which can produce adverse pressure in front of
some units. In order to validate this hypothesis, the Tucurui hydro power plant tailrace was modeled and field measurements were applied to verify the model behavior. This article will focus on results obtained and comparison between the physical and numerical approach.

Autores: Bortoni, Edson C.; Bertrand, Olivier; Sauvaget, Patrick; Santos, Luciano T.; Vasconcellos, Ricardo C.
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