Project 1 : CFD Meshing for Tesla Cyber Truck

Aim:

Check and solve all geometrical errors and assign appropriate PIDs. Perform meshing.

Objective:

To practice on checking geometrical error, doing PIDs, learn about surface mesh, how to perform symmetry and how to make wind tunnel.

Body of content

Step 1

Insert Model

File

Step 2

Mesh < Length < Perimeter as 1

Mesh < Length < Macros as 1

This help as to bring perfect size and shape of each and every component of Tesle cyber truck.

Step 3

Removing tripple and single cons from the truck.

Creating missing surface

Step 4

Applying PIDs

Properties < PID name (right click) < Select the object < Middle click

Apply to all the parts

Step 5

Meshing of Geometry

Classic mesh < Length < Perimeter < Select Object < Middle click < Enter value

Classic mesh < Length < Macros < Select Object < Middle click < Enter value

Mesh parameters < Select target length and element type < Click OK to confirm

Quality criteria < Select minimum and maximum length < Click OK to confirm

then

Classic mesh < Mesh Generation < Spot Mesh < Select object < Middle click to confirm

Given conditions

1. Light - 2mm
2. Bumper - 1 mm
3. Glass - 3 mm
4. Tyre - 2 mm
5. Cargo bed - 3mm
6. Body - 4 mm

Shell mesh < Reconstruct < (Topo clean up) or (Grids < Move)

Step 6

Geometry check

Checks<Geometry

No error found

Step 7

Wind tunnel

Wind tunnel distance

From front face = Truck distance from center to front + 4 X 5713 = 23742

From rear face = Car distance from center to rear + 6 X 5713 = 35859

Top face = Car height + 3 X 5713 = 18670

Bottom surface = -175 in negative z direction

Side surface = 5713

5713 = Truck length

Create curve and join points to create new surfaces

Classic mesh < Length < Perimeter < Select Object < Middle click < Enter value

Classic mesh < Length < Macros < Select Object < Middle click < Enter value

Mesh parameters < Select target length and element type < Click OK to confirm

Quality criteria < Select minimum and maximum length < Click OK to confirm

then

Classic mesh < Mesh Generation < Spot Mesh < Select object < Middle click to confirm

Top Surface target mesh length 100

Bottom surface target mesh length 20

For remaining four surfaces

Spacing < Biasing-Linear < Start factor-20 < End Factor-100 < Select four edges as shown in figure < middle click to confirm

Classic mesh < Mesh Generation < Spot Mesh < Select object < Middle click to confirm

Project file is larger than the given criteria so i am unable to upload it.

So here is the link of project in google drive

https://drive.google.com/drive/folders/1i0ZYhCLIe16MA_yPWZaSnNSprCWfPLAr?usp=drive_link