INTRODUCTION
1.1 Physical
problem description
The problem studied is shown in the the next figure. Air at standart pressure
and temperature (293 K) enters at the velocity of 1.8 m/s (Reynolds
number = 3000) and exits through the outlet. Its properties are as
follows :
density (kg/m3)

Molecular viscosity (Pa.s)

Specific heat (J/Kg.K)

Thermal conductivity (W/m.K)

1.205

1.81 E5

1006.0

2.637 E2

1.2 Modelling
strategy
The following modelling
strategy is used :

cartesian coordinate system with uniformly spaced square
cells.

mesh generation based on a multiblock technique.

inlet, outlet and wall boundariy regions.

incompressible and steady flow options.

appropriate physical parameters for the fluid.

keps turbulence model for the turbulence characteristics.