Flow over an airfoil

Aim:

To study the flow over an airfoil (NACA0017 airfoil)for different angle of attack.(i.e. 0,2,4,6,8,10 degree)

1) We are importing the airfoil for a better result .

2)convert the imported airfoil curve into a sketch and closed the airfoil to extrude it to a desirable length.

3) For different Angle of Attack we just need to rotate the model in an anticlockwise direction.

4)Now in flow simulation tab click on the wizard tool to run the simulation and select the fluid as Air, simulation type as External flow Simulation and set this as transient simulation, therefore we need to set the total simulation time(in this case we are taking 5sec) and output time step(in this case 1s).

We are interested in studying the drag force and lift force for different AOA we can do this by inserting goal plots.-

I) integrated force along the x-axis which is actually the Drag force i.e., surface goal along x-axis and

II) Integrated force along the y-axis is the Lift force i.e., surface goal along y-axis.

Results:

1)For AOA =0

2)For AOA =2

3)For AOA =4

3)For AOA =6

3)For AOA =8

3)For AOA =10