Project 1 : CFD Meshing for Tesla Cyber Truck

Objective: To clean up all the geometrical errors of the given model and perform the surface meshing of the model and create a wind tunnel for testing purposes as mentioned in the challenge.

 Process:

Using the various tools discussed in the previous challenges all the geometrical errors are cleaned up and the snapshots of the same are shown below

Using topo the single cons are solved

All the missing surfaces are created using a new tool in the face menu

      

 

  

Removing the thin surfaces to avoid the off elements during meshing

  

   

Removing penetration error by deleting unnecessary surfaces

  

  

After cleaning up all the errors and improving the geometry of the model is segregated into two parts body and tires.

And then verifying both parts for any geometrical errors

For body, there are no geometrical errors visible

 And in the tires, there are 160 concave errors visible which can be solved as shown below after rearranging surfaces but it is a time-consuming process so these errors are ignored

After dividing the model the body is meshed with a target length of 3mm  and tires with 2mm with 0 off elements

  

And then the wind tunnel with the specified distance between the surfaces is prepared i.e 3 times the height of the car which is  1545 and 4 times the car length of the car which is 5900 for the front surface and the rear surface it is 6 times the length of the car and then the side walls are kept at the distance same as the width of the car which is 2080 and the bottom surface are near to the bottom of the car.

 

and the surface mesh of the bottom surface is kept at 20 mm and that of the top surface is 100 using the spacing tool the length of the cons of the side, front and rear surfaces are spaced as it is increasing from the bottom to the upper surface with initial cons being of 20mm and the final being 100 mm and the rest of the cons from the bottom to the top surface would increase with a factor of 1.2

Bottom Surface

Top Surface

 Side Walls

         

Link For the completed Model file:

https://1drv.ms/u/s!Aou855wN8W8xh1hGUriE49mTJRIh?e=laOjLf