Week 3: Flow over a backward facing step
(Projects.skill-lync.com website was not working).
Aim: Simulate flow over backward facing step
Case Performed:
- dx = dy = dz =2e-3m
Geometry used for backward facing step
Setup:
Application:
Time-based
Materials used:
Air
Simulation Parameters:
Run Parameter: Steady-state solver
Start time: 0.0
End time: 15000 cyc
Initial Time step: 1e-08
Max Time step: 1
Boundary Conditions:
Inflow: 101325Pa Pressure, 300K
Outflow: 100000Pa Pressure
Top and Bottom: Stationary wall, 300K
Front and back 2d: Two-D
Regions:
101325Pa and 300K
Species: Air
Grid size: dx=dy=dz=2e-3m
Mesh
Total Cell count
The total number of cells are around 1000.
Graphs
The below graphs show various data such as velocity, pressure, mass flow at inlet and outlet.
The graphs indicate convergence in solution is achieved after 2000 cycles, more closer to 2800 and thus shows a steady state solution in all the graphs.
Avg Velocity Inlet
Avg Velocity Outlet
Mass Flow Inlet
Mass flow Outlet
Static Pressure Inlet
Total Pressure Outlet
Velocity Contour
Pressure Contour
Video for Backward facing Animation: