DOI: 10.1615/ICHMT.2014.IntSympConvHeatMassTransf
ISBN Print: 978-1-56700-356-7
ISSN Online: 2642-3499
ISSN Flash Drive: 2642-3502
ENTRY FLOWS FOR FENE-P FLUIDS IN A PLANE PASSAGE FOR CONSTANT HEAT FLUX & WALL TEMPERATURE BOUNDARY CONDITIONS
RESUMO
Solution to thermally developing laminar flow of a Newtonian and viscoelastic fluids on the FENE-P model trough a plane passage are examined numerically using the finite element based software Polyflow. Numerical investigation carried out to analyze the influence of the rheological parameters on the flow field and heat transfer enhancement with negligible viscous dissipation. The analysis considers both a constant wall heat flux and wall temperature boundary condition and results for Newtonian case are compared with analytical solution available in the literature. For the non Newtonian case, results show that increasing the fluid elasticity leads to an increase in Nusselt number due to the increased level of shear-thinning behavior. However increasing the extensibility parameter L2 leads to a decrease in Nusselt number.