Week 9 - Mini project - Flow over an Airfoil
Flow over an Airfoil
Aim :
To perform a Flow over an Airfoil simulation with various Angle of attacks.
Case -1 - Angle of attack = 1º
Case -2 -Angle of attack = 5º
Case -3 -Angle of attack = 10º
Case -4 -Angle of attack = 15º
General Setup:
Geometry:
- Airfoil geometry was created as per the dimensions given in the http://airfoiltools.com/airfoil/naca4digit .
- After hat we have to create the enclosure to perform the simulation.
Case setup:
Application Type:-
- Time based
Material:-
- Gas simulation
- Global transport parameters
1.Turbulent Prandtl number - 0.9
2.Turbulent schmidt number - 0.78 - Species
1.N2
2.O2
Simulation Parameters:-
- Run Parameters
1.Solver - Transient
2.Temporal type - Time based simulation
3.Simulation mode - Full hydrodynamic
4.Gas flow solver - Compressible - Simulation Time Parameters:
1.Start time - 0s
2.End time - 60s
3.Initial time step - 1e-9 s
4.Minimum time step - 1e-9 s
5.Maximum time step - 1 s. - Solver Parameters:
1.Navier stokes solver scheme - PISO
2.Navier stokes solver type - Density based - Boundary Conditions :
1.Inlet - Inflow
Velocity -30m/s
Species - N2 and O2.
2.Outlet - Outflow
Pressure - 101325 pa
Species - N2 and o2
3.Top & Bottom - Symmetry
4.Front 2D - Two_D
5.Back 2D - Two _D
6.Aerofoil wall - wall - Initial conditions and events:
1.Initial pressure - 101325 pa
2.Initial Velocity - 30m/s
3.Initial Temperature - 300K
4.Species - Air - Physical Models:
1.Turbulence modelling - RNG-K-epsilon - Grid control:
1.Base Grid - (x-0.1m) (y-0.1m) (z-0.1m)
Angle of Attack - 5º
Cell count:
Results:
Velocity:
Pressure:
Drag:
Lift:
Angle of Attack - 10º
Geometry:
Cell count:
Results:
Velocity:
Pressure:
Drag:
Lift:
Angle of Attack - 15º
Geometry:
Cell count:
Results:
Velocity:
Pressure:
Drag:
Lift:
