variavel0=<b>Marcelo J.S. De Lemos</b> - delemos@mec.ita.br ITA
<b>Marcelo Assato</b> - delemos@mec.ita.br ITA
<b>Abstract.</b> This work presents a numerical investigation of fully developed turbulent flow in a triangular sub-channel of a bare rod bundle using a non-linear eddy viscosity model (NLEVM). The numerical technique employed for discretizing the governing equations is the control-volume method with a boundary-fitted non-orthogonal coordinate system. The SIMPLE algorithm was used to correct the pressure field. The classical wall function and a low Reynolds model were used in order to handle flow calculations near the wall. In this work is analyzed the influence of constant of calibration existing in the non-linear term of the model on turbulent flow.
<b>Keywords.</b> secondary flow, rod array, non linear model, anisotropy, turbulence.