Week 9- Unsteady moving zones Approach
Unsteady moving zones Approach
Aim: To simulate the motion of blades in a generic turbomachinery component using an unsteady approach.
Given data:
- Assume blade rotation at 300rpm
Procedures:
- Import the mesh file stepwise in fluent set up using append option.
- general set up
- time step for the simulation :
Rotational velocity=300 rpm
angulr velocity,
`omega=(2piN)/60`
Time period, T=60/N=60/300=0.2 sec
for 1000 time steps,
`Delta T=`0.2/1000=0.0002
Solutions:
Residuals:
velocity contour:
Mass flow rate plot:
static pr contour:
Animation file:
https://drive.google.com/file/d/1Ib-zgXC8XD3mwkG9gZYbYnLg1AKqPr6b/view?usp=share_link
Results:
- mass flow rate at outlet -13.204531 kg/s(negative sign because fluid is leaving from domain)
- the maximum velocity is around 31.3 m/s near the blades.
- maximum static pr is 385 pa.
Conclusion:A moving mesh approach based simulation is performed successfully .