Week 3 Challenge : CFD meshing on Turbocharger

AIM:

To check for geometrical errors to make appropriate volumes, create and assign PIDs for the given model. To perform surface mesh with the given target lengths as per PIDs.

1. Blade stage-1 = 1 mm
2. Blade stage-2 = 1 mm
3. Impeller = 2 mm
4. Shaft rotor = 1 mm
5. Turbo casing = 5 mm
6. Compressor casing = 5 mm
7. Inlet casing cover = 5 mm

Then we need to perform a Volumetric mesh for the required volumes.

DESCRIPTION:

GEOMETRY/TOPO CLEAN UP:

Loading the geometry model in ANSA

Executing a Geometry check for the above model we see no triple, or single cons

Creating PIDs

MESHING:

Before moving to Volumetric mesh we first do the meshing.

So before meshing, we check for geometry and we see only the triple cons.

Now giving the quality for the meshing target length by selecting the PIDs according to the given target lengths

1. Blade stage-1 = 1 mm
2. Blade stage-2 = 1 mm
3. Impeller = 2 mm
4. Shaft rotor = 1 mm
5. Turbo casing = 5 mm
6. Compressor casing = 5 mm
7. Inlet casing cover = 5 mm

The surface meshing of Blade stages 1 &2, shaft rotor by 1mm

The surface meshing of the impeller by 2mm

The surface meshing of the compressor casing, turbo casing & inlet cover casing by 5mm

Freeze all PIDS to avoid unmeshed elements

VOLUMETRIC MESHING:

As there are no unmeshed surfaces now we move to volumetric mesh

We go to define and select the whole database

https://drive.google.com/file/d/1P6MfjqIaaACqv3tNZnQj2rJMsrpUPyHh/view?usp=share_link

CONCLUSION:

Thus, the geometrical errors like single, double, and triple con are checked and PIDs are assigned accordingly to the requirement and the surface is generated with the given target lengths. Then volumetric meshing is performed for the volume required successfully.