Project 1 : CFD Meshing for Tesla Cyber Truck

CFD Meshing for Tesla Cyber Truck

Aim:

To do the CFD meshing on the given Tesla cyber truck’s model.

Objective:

CFD Mesh and removing the geometrical error in the given Tesla cyber truck’s model.

Procedure:

1. Topo Clean up:

• Open the file from the location where we have saved on our Computer by using the “Ctrl+O” Command.
• Go to the Tool in the ansa
• Select the check
• Left click on geometry check
• Select the following check-in geometry check

1. Single cons
2. Cracks,
3. Overlap faces
4. Needle faces
5. Trible cons
6. Collapsed cons
7. Unchecked faces

• Note the error in your notebook.
• Identify the error location.
• Delete the single con error by creating a new surface with help of coon option.
• Perform topo opting in single con in the way to remove the single cons.
• Release the unwanted Triple con by using the release option in the Topo deck.
• Remove the overlapped surface by Delete the Surface which is overlapped.
• Remove the extended surface by deleting the extended entities and creating a new surface.
• Eliminate void surface by creating the new surface in ansa.
• Check the single Cons by using wireframe mode in ansa by using the combination of the Ctrl+Shift key.

2. Creating PID

• Go to the PID manager
• Create a new PID.
• Give the name to the PID.
• Assign the color for each surface according to the PID we created.
• Apply the PID to the Surface.
• Edit the PID according to the given name.
• Compress the unwanted PID.

3. Creating tunnel:

• Create a point at mid of the model.
• Crate Four corner points for creating the bottom plane.
• Make a curve to join the four points.
• Generating bottom plane. By creating new surfaces.
• Create a top plane 3900 unit height from the bottom plane.
• Make a surface around the model with help of the bottom plane and top plane edge.

4.2D mesh:

• Go to the mesh deck and give the perimeter value, and macro value as a target length.
• Assign the mesh parameter value
• Go to the quality Criteria and give the minimum and maximum values.
• Go to the mesh deck,
• Pick the spot mesh.
• Generate the mesh for the given component.
• Do the same procedure for various target lengths that they are given.
• Check the unmeshed surface
• Regenerate the mesh.
• Reconstruct the mesh to eliminate the node which has a minimum mesh target length.

4.3D mesh:

• Go to the 3D mesh deck.
• Select the volume and click on Auto Detect. The 3D volume will appear.
• Delete the unwanted Volume Where the flow won't be.
• Right-click on the volume which is we want.
• Generate 3D mesh
• Check the 3D model

Tunnel calculation:

The model Lenght is 1300mm

Front plane = 1300X4=5200

Rear Plane= 1300X 6=7800

Top plane=1300X3=3900

Side plane=1300X1=1300

Learning Outcomes:

• Geometry clean up
• PID creation for a part
• 2D mesh
• 3D mesh
• Creating tunnel.

Result:

The CFD meshing for the model is Done.

PID manager

Fig: PID manager

Topo Clean up:

Fig: Topo Clean up

2D mesh generation:

Fig: 2D mesh.

Conclusion:

Thus, the CFD mesh for the tesla cyber truck is achieved by topo cleaning up and assigning PID creating a tunnel, making 2D mesh, and Creating a 3D surface.

File link:

https://drive.google.com/file/d/13n4AmaIu8iww0wmp5cgnrYUzJ0KyJVeh/view?usp=sharing

*Note: the file size is big. so i cant upload that file. I gave that google drive link in the report. kindly check the link.