Week 4 Challenge : CFD Meshing for BMW car

Aim : CFD meshing for BMW car using ANSA.

1. Target lengths for the different parts of a model are as follow:
2. Body - 3 mm
3. Lights - 4 mm
4. Grills - 1 mm
5. Rims and Tyres - 2 mm
6. Optical Rear view mirror - 2 mm
7. Window - 2 mm
8. Silencer - 3 mm
9. Logo - 1 mm

Results:

Grill

Procedure:

• Delete the thickness of the grill.
• Delete the face where we have to make the topo cleanup and use New
• Used project tool to project the cons on the surafce to delete the surface.

Grill

Procedure:

• Create the hot point at 0.2% distance from the surafce.
• Draw a line with the help of cut tool on the surafce.
• Assign the PID to the suraface.
• Create a surface using New<Fitted.
• Use topo cleanup.
• Use intersect tool to delete the unwanted surafce.

Grill

Procedure:

• Delete the extra surface.
• Clear the triple cons.
• Draw a surafce using cut tool.
• then delete the extra suraface.
• Remove the upper surface of the grill rod.
• Now do plane cut by creating hot point at the middle.
• Connect the surafce using curve<create
• Then create the new surface using New<fitted
• Delete the curve line.

Logo

Procedure:

• Delete the extra surface.
• Create the surafce using New<Cons
• Project the logo surafe on to the car body.
• Clear the triple cons on the 'M' by deleting the surafce,hot point and the creating the surface.

Procedure:

• Delete the surafce which creating the intersect error.
• now extend the surafce.
• After extend, cons will extend so we have to release.
• Then extend the surafce and delete the back surafce.

Procedure:

• Delete the extra surafce on top of the car.
• Delete the extra surafce on the mirror and creating the surface.

Tyre

Meshing

• Define the PID for each part.
• Provide the mesh parameters and put the range value in min target length and max target length.
• Define the quality parameters to avoid distortion of the mesh.
• Clear all the off element by reconstructing and reshaping the mesh geometry.

Grills -1mm

Light- 4mm

Logo-1mm

Silencer - 3mm

Tyre,window and optical mirror - 2mm

Body - 3mm

BMW

https://drive.google.com/file/d/1G7suQ7qrVDxkdl0YJbHC1OFaQLuqPdDv/view?usp=sharing