Project

Channel flow simulation using CONVERGE CFD

OBJECTIVE:

To perform a CFD simulation of flow in a channel using CONVERGE cfd for three different base meshes.
To generate velocity and pressure contours for all the 3 base mesh sizes.
To plot a velocity, pressure,mass flow rate and total cell count for all 3 base mesh sizes.

PROFILE GEOMETRY:

BASE MESH SIZE:

dx = dy = dz =2e-3m

dx = dy = dz =1.5e-3m

dx = dy = dz =1.0e-3m

CASTE SETUP:

CYGWIN RUN TIME

RESULTS: The simulation results for different mesh grid size as follows

Using PARAVIEW different mesh size are shown below

1. dx = dy = dz=1e-3

Velocity contour

Pressure contour

Mass flow rate

Velocity at inlet & outlet

Pressure at inlet & outlet

2. dx = dy = dz =1.5e-3m

Velocity contour

Pressure contour

Mass flow rate

velocity at inlet & outlet

Pressure at inlet and outlet

3. dx = dy = dz =2e-3m

Pressure contour

Velocity contour

Mass flow rate

velocity at inlet & outlet

Pressure at inlet & outlet

Conclusion

The total computational time can be reduced by running the simulation using parallel processors.
Due to initial boundary conditions, we get a disturbance in the plots initially but eventually, we can get a steady state.
According to velocity contour & plot, the magnitude of velocity is higher in the middle region of channel than to region near top & bottom of the wall.
The contours obtained are smooth when a finer mesh is used for simulation. A coarse mesh can give results which can be hard to interpret.
Mass is conserved. The addition of mass flow rate results in zero.

Ship work like this
in your own course.