Project 1 : CFD Meshing for Tesla Cyber Truck

AIM

• To check and solve all geometrical errors in the given model and assign appropriate PIDs
• To perform meshing with the suitable target length and element Quality criteria

SPECIFICATIONS

Target Length Used For Each Elements:

1. Body= 3mm
2. Lights= 4mm
3. Tyres= 2mm
4. Window = 2mm

STEPS AND FOLLOWING RESULTS

Step 1: Using TOPO to clear SINGLE CONS error

a) Before using TOPO

b) After using TOPO

Step 2: Geometric Clearance of the given model

Step 3: Use of Plane Cut option to symmetrically divide the given model

a)

b)

c)

Step 4: Removal of single cons, triple cons and intersection errors

a) Removing errors from tyres

b) After completion of geometric clearing

c) Errors in front section

d) After completion of geometric clearance

e) Wieframe of Geometric Clearance

Step 5: Assigning the PIDs (e.g. Lights, Tyres etc.)

Step 6: Assigning the given value criteria

Skewness =0.5

Min Length = 0.1 mm

Max Length= 6 mm

Step 7: Surface meshing

a) Adjusting the mesh parameters for Windows and Tyres

Target length = 2 mm

b) Adjusting mesh of windows and tyres

c) Adjusting mesh parameters for car body

Target length = 3 mm

d) Mesh body

e) Adjusting mesh parameters for front light

Target length = 4 mm

f) Light mesh

g) After completion of mesh

Step 8: Joining Half element of Cyber Truck

Use of Transform, Copy, Symmetry

Step 9: Complete mesh of the model

Step 10: Creation of wind tunnel

a) Taking relative points

b) Creation of bottom surfaces with the help of relative points

c) Generating faces of wind tunnel

d) Creation of Top Face using Offset

e) Creation of wind tunnel

Step 11: Surface meshing of wind tunnel

a) Bottom face

Target Length = 50 mm

b) Top face

Target length = 150 mm

c) Completion of mesh of wind tunnel

(Use of Grow Mesh analysis on the side faces)

CONCLUSION

• A complete model has been generated by performing necessary surface and volume mesh functions with the given specifications
• Growing mesh analysis is a new tool that has been used here to perform Volume Meshing
• A detailed geometry cleanup was used to reduce the scope of errors
• Some of the specific tools of ANSA used to solve this challenge include coons2curve, PlaneCut, grow mesh analysis and others
• Creation of wind tunnel with the given specifications has been executed here
• A Google Drive link of the completed file has been attached with the report (Attachment Link given below)

Google Drive Link of the completed file

https://drive.google.com/file/d/19V4LWO6p92Y2-MMf_wTpyRu8K5kFUz56/view?usp=sharing