Week 3: Flow over a backward facing step
Flow over a backward facing step
objective:
- simulation for three grid sizes
- grid size 2e-3, 1.5e-3 and 1e-3
- show pressure and velocity contour for all three grid sizes
Steps involved:
- Input setups in converge and then exporting input files to selected folder
- run simulation using cygwin
- post-converting using converge
- velocity contour and pressure contour using paraview
setup
Material - air
Application type - Time based
Simulation parameters -
steady state solver, fully hydrodynamic, compressible
start time- 0 , end time - 15000
Time step - 1e-6
max cfl limit - 1.0
Boundaries:
INflow
outflow
front wall - 2D
back wall - 2D
top-bottom- law of wall
Grid control
grid sizes - 2e-3, 1.5e-3, 1e-3
fixed embedding with scale of 1.0
Grid size 2e-3
Grids
velocity contour
pressure contour
Mass flow rate
solution has reached steady state at around 14000 cycles
Total pressure
Static pressure
Velocity
Grid size 1.5e-3
Grids
velocity contour
pressure contour
Mass flow rate
solution has reached steady-statwe at around 14000 cycles
Total pressure
Static pressure
Velocity
Total cells
Grid size 1e-3
pressure contour
velocity contour
mass flow rate
Average velocity
Static pressure
Total pressure
Total cells
