Challenge on Gearbox Sloshing effect
Aim:
To analyse the flow pattern of the fluid for two different clearances of the same geometry. To conduct the analysis with a different fluids. To run 4 cases- gearbox of different clearances and with the two different fluids.
1. Case 1 Gearbox: Air and Water
2. Case 1 Gearbox: Air and oil
3. Case 2 Gearbox: Air and water
4. Case 2 Gearbox: Air and oil
Geometry:
3D model of gearbox was intially provided for this simulation. Bearing in mind of Ansys academic version limitation of 512K nodes and elements and running time of transient simulation, the problem was converted into a 2D simulation.
Properties of Oil:
Density: 871 kg/m^3
Viscosity: 0.04006889 kg/m-s
Case 1&2 Case 3&4
No of Nodes 45678 48624
No of Elements 85974 88451
Case 1&2 : Low Clearance
Case 3&4 : High Clearance
To transform the motion for gears user defined funtion has been deployed.
Animations for different vedios:
1. Case 1 Gearbox: Air and Water
2. Case 1 Gearbox: Air and oil
3. Case 2 Gearbox: Air and water
4. Case 2 Gearbox: Air and oil
Above are the animation for different cases of gear positions and different fluids.