variavel0=<b>Luís Carlos Demartini</b> - luis_demartini@banrisul.com.br UFRGS
<b>Horácio A. Vielmo</b> - vielmoh@mecanica.ufrgs.br UFRGS
<b>Sérgio V. Möller</b> - svmoller@vortex.ufrgs.br UFRGS
<b>Abstract.</b> The present work analyzes, numeric and experimentally, an air flow inside a channel of rectangular section, containing  two  rectangular  baffles  plates.  This  is  an  important  problem  in  the  scope  of  heat  exchangers  where  the characterization of the flow, pressure distribution, as well as the existence and the extension of possible recirculations need to be identified. The differential equations that describe the flow were integrated by the Finite Volume Method, in two dimensions, employing the Fluent software with the k- E model to describe the turbulence. The mesh is structured, with rectangular  volumes. Several boundary conditions were explored, being the more  realistic  results  obtained  by prescribing  the  inlet  velocity  field  and  atmospheric  pressure  at  the  outlet.  The  obtained  results  are  compared with experimental data and the deviations are analyzed and commented. The velocity field was measured with a hot wire anemometer, and the pressure field with an electronic manometer. The larger variations in the pressure and velocity fields occur in the regions near to the deflectors, as expected.
<b>Keywords.</b> Numerical simulation, experimental simulation, turbulence, Fluent, hot wire anemometer.