2 Creating a new project and the geometry

First, we have to create a project:

1. In the navigation bar, click 'Projects'
2. Then click 'New project'
3. Enter the name of your choice for the project. (ex: 'Tutorial-6')
4. For the project type, select 'NS_3D_KW', which is Navier-Stokes 3D K-Omega abreviated (a K-omega SST turbulence model will be used).
5. Set the parameters : Ref surface area = 2.04 m² ; Ref pitching length = 0.63 m ; Ref yawing length = 3.24 m.
6. The detail size parameter should be set at 6 mm.
7. Set a "coarse" refinement on low-curvature surfaces, and a prism expansion ratio of 1.25.
8. The Template NS is a script version for processing the Navier-Stokes runs. Choose the one with the highest version number.
9. You can add comments, but it is optional.
10. Finally, click the 'Create' button.

 

Then, we can create our first geometry:

1. In the navigation bar, click 'Geometries'
2. In the tree on the left, choose the project you created at the preceding step.
3. Finally, click the 'Add a geometry' button.

 
In the geometry creation form, set the parameters as:

1. Name it 'Tuto6-v1' for example, as this is the first version of the geometry.
2. You can add comments, but it is optional.
3. Under the spitfire image highlighting the axis expected in the CAD, set the units of the CAD. The files provided have been exported in millimeters.
4. Click the button to add reference parts, select the path to the stl files provided before, add all the stl files present in the "v1" sub-directory. Set the part type as below, make sure to set the intake and exhaust of the DA100L correctly.

    
   

5. Skip the moving parts and go down to the center of gravity setting. Set it to 0 / 0 / 0 mm.
6. The hole detection point is used to check the integrity of surfaces given. It is a point that is inside the solid given. You can check for holes in multiple solids by setting multiple points. Here we can set a couple: one inside the fuselage and one inside the engine. The coordinates 0 / 0 / 0 (inside the fuselage) and optionally 465 / 0 / 30 mm (inside the engine).
7. Refinements of the parts need to be done. Set them as below
8. Set the exchanger volume or surfaces, the rotor zone, the flow report surface and go to the bottom to create the geometry.