Scalar transport in backstep flow
Case directory
$FOAM_TUTORIALS/basic/scalarTransportFoam/pitzDaily
Summary
Using the pre-calculated velocity data, the temperature distribution in a backstep geometry will be solved until 0.1 second later.
The fluid flows in from the inlet region with velocity (10, 0, 0) and out from the outlet region. Set the no-slip condition for the upper and lower surfaces in the Y direction, and the calculation is performed as a two-dimensional problem with a single mesh in the Z direction. The pre-calculated velocity data is placed in the directory "0" and the velocity (U) is not solved during the calculation.
Initially, the temperature of the fluid is set to 0, and a fluid of temperature 1 flows in from the inlet region.
The pre-calculated flow velocity
The meshes are as follows.
Meshes
To visualize the calculated temperature field, check "T" in the "Properties" tab on ParaView.
Check "T"
The calculation result is as follows.
Temperature distribution at 0 sec (T)
Temperature distribution at 0.02 sec (T)
Temperature distribution at 0.1 sec (T)
You can see how the temperature is spread by advection and diffusion.
Commands
cd pitzDaily
blockMesh
scalarTransportFoam
paraFoam
Only temperature wll be solved by the scalarTransportFoam solver.
Calculation time
--- *Single, Core(TM) i7-2600 CPU @ 3.40GHz 3.40GHz