In the present paper, simulation for shell and tube heat
exchanger investigated using CFD techniques. Numerical
simulations of the turbulent, three-dimensional fluid flow and
heat transfer are performed using Ansys Fluent 6.3. The effect
of friction characteristics on the model of heat exchanger is
discussed. A RNG κ-ε turbulence model with non-equilibrium
wall function and 2nd order upwind is used. The present model
is validated with the experimental literature and show a good
agreement. The numerical results of the present study predict
reasonably agree well with available correlations. Finally the
present study model can be used to model a shell and tube heat
exchanger with a satisfactory accuracy level in predictions