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The profiles tested Wind tunnels are recorded in databases tabulated coordinates to redraw the profile with a software or a spreadsheet editor. ( sample file of coordinated s Profile )
Test results are saved as Polar usable for calculating lift and drag the angle of Incidence and the number of Reynolds .
you find Here examples of links towards data in tables that you can insert into the editor profiles MECAFLUX to calculate their lift and drag . So you can save your profiles and create your own database.
You create a profile in the profile editor.......
and then you use the interface calculations of lift
- Create a profile from a coordinate file :
- Download List of coordinates Profile ZIP file: :(watch some tables do not begin and end with 1, in which case it will be necessary to add a line or beginning and end table with 1 in x and 0 y)
The table must contain only 2 columns
The first column representing the coordinates of point X must start with 1 and finish by 1
intermediate values are necessarily between 0 and 1.
Example of table format ordinated:
| 1 |
0.000017 |
| 0.987025 |
0.000057 |
| ...(x<1) |
...(y<1)... |
| ...... |
..... |
| 0.000158 |
0.001262 |
| 0 |
0 |
| 0.000035 |
-0.002456 |
| ...... |
....... |
| 0.987377 |
-0.001015 |
| 1 |
-0.000017 |
- S ELECT your profile and open the coordinate file
- C opiez table coordinates avoiding the name of the top table. the first column of your list should start with 1 and finish by 1
- Paste Table coordinates in the editor MECAFLUX profiles by clicking on "paste clipboard" at the top of the table coordinates.
- Click on "update the line" and your profile will appear.
Use XFOIL to calculate the polar you do not have values. Attention XFOIL do calculation profile resembling wings, thick or thin not calculable with XFOIL
profile editor integrated to  MECAFLUX
A sample files profiles is already built into Editor, you just have to choose your profile
Iinputing the Coordinates tables You can create your image airfoil and save as a bitmap (. bmp). A simple drawing editor allow you to resize your profile on the scale required.
- S ELECT your profile and open the coordinate file
- C opiez table coordinates avoiding the name of the top table. the first column of your list should start with 1 and finish by 1
- Paste Table coordinates in the editor Mecaflux profiles by clicking on "paste clipboard" at the top of the table coordinates.
- Click on "update the line" and your profile will appear.
| 1 |
0.000017 |
| 0.987025 |
0.000057 |
| ...(x<1) |
...(y<1)... |
| ...... |
..... |
| 0.000158 |
0.001262 |
| 0 |
0 |
| 0.000035 |
-0.002456 |
| ...... |
....... |
| 0.987377 |
-0.001015 |
| 1 |
-0.000017 |
you can enter the polar collected online, in your documentation or on your experiments. For polar plates curved Here is a java application is retrieved from the NASA website shows that their experiments. The data on the polar plate curves for different width or length ratio radius curves are very useful. You can recreate your file polar and enter data in the profile editor to create your user profile in mecaflux
Mecaflux integrates XFOIL (free software available on the web) to calculate the polar patterns as you enter the editor, if for example you can not find the polar profile of your choice:
Attention XFOIL do calculation only for profile resembling wings
The thick profiles and thin profiles are not calculable with XFOIL
Click on calculate lift when the xfoils computing is finished and your profile will be incorporated into the interface calculation of lift
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