variavel0=<b>Odenir de Almeida</b> - odenir.almeida@embraer.com.br Empresa Brasileira de Aeronáutica - EMBRAER
<b>Guilherme Lara Oliveira</b> - guilherme.lara@embraer.com.br Empresa Brasileira de Aeronáutica - Embraer
<b>Luis Gustavo Trapp</b> - gustavo.trapp@embraer.com.br Empresa Brasileira de Aeronáutica - EMBRAER
<b>Abstract.</b> The present work describes the use of CFD tools to investigate the effects of suppression in a turbofan engine of a regional jet aircraft in terms of evaluating the base pressure in the fan cowl trailing edge. Three-dimensional numerical calculations have been performed with two different commercial CFD packages: FLUENT and CFD++. Both software’s uses a finite-volume formulation and solves the Navier-Stokes equations on unstructured grids employing improved k- E turbulent models. The results of numerical calculations in terms of averaged base pressure and Mach number were compared with those from experiments.
<b>Keywords.</b> CFD, turbofan, aircraft, suppression effects, finite volume.