variavel0=<b>Erb Ferreira Lins</b> - erb@ufpa.br UFPa
<b>Fernando T. Pinho</b> - fpinho@fe.up.pt CEFT-DEMEGI
<b>Daniel Onofre de Almeida Cruz</b> - doac@ufpa.br UFPa
<b>Abstract.</b> A recently developed viscoelastic k- E turbulence model is used to analyze the reduction in heat transfer coefficient of viscoelastic fluid. The new dynamic turbulence model is able to link fluid rheology and turbulence and constitutes an alternative approach to the prediction of turbulent flow of drag reducing fluids. Here, the momentum equations are numerically solved for a fully developed pipe flow and the flow field solution is used to solve the thermal energy equation, in order to obtain the heat transfer coefficient along the developing boundary-layer. The numerical calculations of momentum compare favourably with experimental data, whereas the heat transfer simulations do show a significant heat transfer reduction in relation to that of Newtonian fluid, thus showing that the new formulation is able to predict both drag and heat transfer reductions in pipe flows.
<b>Keywords.</b> turbulence, Viscoelastic, Heat Transfer, Fluid Flow.