Project 1 : CFD Meshing for Tesla Cyber Truck

Aim : CFD meshing for a Tesla cyber truck.

Procedure :

• Import the Cyber truck geometry
• check the dimensions and for any geometrical irregullarities.
• complete topo cleanup
• check for geometrical error
• do the surface meshing of the cyber truck
• create wind tunnel
• surface mesh the wind tunnel

check for geometry and resolution

check geometry and penetration errors using checks manager

Checks > checks manager > select geometry and intersection/penetratiokn errors. > execute

since the geometry is asymmetrical we can cut the mode in half and correct the errors on one side and replicate the complete section.

cut the geometry using plane cut

plane cut> single  > select nodes > confirm

check for geometry and penetrarion errors and resolve the issues

create faces using Faces > new > coons select cons using entity option or by loop option > confirm

delete face usig Facs > delete > select face > confirm

penetration errors

clesr over lspped surfsce by deleting the unwanted faces. use not function or Inot option ot isolate faces.

use fill hole option to close unwanted holes Cons > fill hole > select hole > confirm

create new faces on single cons to solve single cons errors.

when only the ingle cons errors on the middle cut are left and all other geometry and intersection errors are cleared assig the PIDs

Properties > new > shell property > name the part > ok > right click on the name > apply > select entities > confirm

use compression option to remove unwanted PIDs

after assigning PIDs assign mesh elements quality criteria.

assign maximum and minimum lenght for quality criteria and skewness of elements.

minimum length as 0.1 and maximum lenght as 9mm fro quality criteria

start meshing of each PIDs

isolate PID using PID manager or by not function.

go to mesh

set target lenght for the PID in MESH

Perimeters > spacing >  auto CFD > select entities > set maximum and minimum lenght > confirm

set maximum and minimum target lenght

set macros

perimeters > spacing > auto CFD > select entities >  set maximum and minimum lenght > confirm 

mesh the faces

mesh generation > CFD > visible

clear off elements suing reconstruct or reshape

off > improve > reconstruct/ reshape > confirm

off > show only worst > Grids move > select nodes > confrim node positon when okay.

after clrearing off elements freeze te mesh

macros > freeze > select the faces > confirm

mesh the remaining PIDs

after completong the meshing, create the symmetrical copy of the cyber truck using transform option

Transform > copy > select entities > confirm > symmetry > mirror 3 points plane > select nodes > confirm

cheeck for geometrical and penetration errors

clear the errors.

create wing tunnel

create a hot point at the middle of base of the truck using parametrical

Hot points > parametrical > select cons > enter distance  0.5 > confirm

measure lenght of truck , distance from the point to the front of the truck, back of the truck and to the sides.

measure > nodes > select nodes

Make a point to in the downward directon of the car using relative option

 Topo > points >  relative > select node > confirm > enter distance in the relative direction > confirm