Flow over an airfoil
AIM:- To Model the flow over a NACA0017 airfoil.
For the angle of attacks 0,2,4,6,8,10 compare the lift and drag forces
INTRODUCTION:- In this project I am going to run a simulation of air flowing over a NACA0012h profile with 600 m/s flow velocity and compare DRAG force and LIFT force for different angle of attack viz. 00, 20, 40, 60, 80 and 100.
THEORY: SOLIDWORKS Flow Simulation is based on the same mathematical foundation as traditional computational fluid dynamics (CFD) software, but key benefits set SOLIDWORKS Flow Simulation apart, making it quicker and easier to use, while still delivering a robust and highly accurate solution.
OBSERVATION:-
|
Drag & Lift data at 00 angle of attack |
|||||||||
|
Goal Name |
Unit |
Value |
Averaged Value |
Minimum Value |
Maximum Value |
Progress [%] |
Use In Convergence |
Delta |
Criteria |
|
SG Force (X) 1 |
[N] |
490.6197027 |
488.3667498 |
485.0719376 |
490.8989796 |
100 |
Yes |
0.189843885 |
11.24146308 |
|
SG Force (Y) 1 |
[N] |
-2.01939763 |
-0.60768828 |
-7.28522365 |
4.574562842 |
34 |
Yes |
1.153065685 |
0.392741013 |
|
Drag & Lift data at 40 angle of attack |
|||||||||
|
Goal Name |
Unit |
Value |
Averaged Value |
Minimum Value |
Maximum Value |
Progress [%] |
Use In Convergence |
Delta |
Criteria |
|
SG Force (X) 1 |
[N] |
536.8788301 |
537.919522 |
534.5066947 |
541.478841 |
100 |
Yes |
0.934660219 |
12.57924068 |
|
SG Force (Y) 1 |
[N] |
695.1145069 |
698.8724013 |
690.2677561 |
708.3670678 |
100 |
Yes |
5.060710049 |
10.10811966 |
|
Drag & Lift data at 60 angle of attack |
|||||||||
|
Goal Name |
Unit |
Value |
Averaged Value |
Minimum Value |
Maximum Value |
Progress [%] |
Use In Convergence |
Delta |
Criteria |
|
SG Force (X) 1 |
[N] |
586.8356001 |
589.2636078 |
585.5255475 |
592.8491191 |
100 |
Yes |
1.884389289 |
13.2037321 |
|
SG Force (Y) 1 |
[N] |
1064.073421 |
1061.189174 |
1052.406253 |
1066.556428 |
100 |
Yes |
14.15017461 |
15.33335238 |
|
Drag & Lift data at 80 angle of attack |
|||||||||
|
Goal Name |
Unit |
Value |
Averaged Value |
Minimum Value |
Maximum Value |
Progress [%] |
Use In Convergence |
Delta |
Criteria |
|
SG Force (X) 1 |
[N] |
662.0536609 |
665.4356506 |
661.5814466 |
668.7817132 |
100 |
Yes |
0.316183688 |
14.65881074 |
|
SG Force (Y) 1 |
[N] |
1416.769039 |
1417.816223 |
1410.352113 |
1422.498882 |
100 |
Yes |
12.14676928 |
20.67363101 |
|
Drag & Lift data at 100 angle of attack |
|||||||||
|
Goal Name |
Unit |
Value |
Averaged Value |
Minimum Value |
Maximum Value |
Progress [%] |
Use In Convergence |
Delta |
Criteria |
|
SG Force (X) 1 |
[N] |
761.7295975 |
761.9595412 |
760.3798182 |
763.864684 |
100 |
Yes |
3.289136414 |
16.07579318 |
|
SG Force (Y) 1 |
[N] |
1753.126963 |
1746.056545 |
1732.447582 |
1755.675423 |
100 |
Yes |
23.22784079 |
26.43767854 |
RESULT:- After flow simulation and result analysing data it is found that as I increased angLe of attack from 0 degree to 10 degree, DRAG force increased but most importantly, LIFT force increased by a more factor. So it can be concluded that LIFT force can be increased by increasing the angle of attack. And DRAG force is dominant at 00 and 20, when compared with LIFT force.