Project 1 : CFD Meshing for Tesla Cyber Truck

google drive link for model:https://drive.google.com/file/d/1oS5JcDs3LKOvOwGKFP3kivbDUDhm2ACy/view?usp=sharing

CFD Meshing over Tesla cyber truck

AIM: To Cheak and and solve all geometrical errors , assigne appropriate Pids and performorming meshing with suitable target length and element quality criteria 

Procedure: Cheaking for Geomatrical and intersectional error

                Plane cut symmetric part

                Topo cleanup 

                Mirroring

                Pid assigning

                Meshing with quality creiteria

                wind tunnel creation and meshing

Learning objectives:

1. Advanced topo cleanup.
2. varing surface meshing
3. Solving quality failed off elements as per Quality criteria
4. Symmetry operation for surface and mesh elements
5. wind tunnel faces creation by points
6. CFD growing mesh on wind tunnel

Methdology:

Step1: Cheak for geometrical errors and resolution 

there are intersection errors and geometrical errors

Step 2: Plane cut the symetrical part of the model

after plane cut

one more time cheaking for geometrical errors

Step 3: TOPO clean up 

Here we clear some uncheaked , overlapped and intersected ,dents and more 

very small faces  causes off elements in meshing

unjoined faces and hitting topo over them may join both 

single cons

from the image we can see dent portions

to make perfitted we will create face such below 

Overlapped faces

deleted the overlapped faces

After all geometrical clean up 

Step4:Mirroring by option transform 

Here we mirror by symmetry by 3points 

Step5:Assinge PIDS

Step 5: Meshing with quality creiteria

turning off the unwanted

to make them visible we have to hit Hidden button

I have changed quality criteria 0.5 and 8mm , as mesh creating was very slow 

Meshing the window and tyres and rim 

the mesh 1mm was creating so much slowly and even giveing more skeve elements so i have changed to 2.5 and 4.5

target length

removeing off elements or imroveing mesh

right click and imrove with reconstruct will reconstruct the mesh to reduce them

reduceing them with the grid and move option we can move and change

Meshing other parts as above

Meshed and freezing them avoid mesh errors

 after meshing imiediate freezing individual pids is important

Step6: creation of wind tunnel by points and and connecting points

points are created by co ordinates values

Off set the bottom face to top face

its showing in positive direction of  z axis and giving values in negitive create in top face

bottom face we give mesh parameters tria and max target and min target length is 110mm , 90mm respectively 

top face max  target length and min target length  100mm and 300mm

 for side faces we create manual spaceing for growing mesh 

Result: we can observe the standard mesh and good mesh 

Conclusion : From above meshing tesla project we can conclude that we can creat standard mesh and good meshes