CFD meshing on Turbocharger

Aim:- To create a mesh of different target lengths on a given turbocharger model.

Procedure:-

Take in the model turbocharger file into the ansa software & check for any geometric imperfections, like single cons and intersection errors, using wire frame tool.

Rectify such errors we are using the new face tool from the topo deck.

Face tool plays major part in clearing up of geometrical imperfections.

Once done with the geometrical corrections we are to face the intersection errors, that is the overlaping of one surface over another.

These errors do require faces tool, intersect tool, project tool and transform tool.

After solving the intersection errors and triple cons in the shaft and two blade components, we then go to the turbo casing part. We can find there is some intersection errors in the connection of shaft to the turbo casing and the compressor casing. Those can be solved by the project tool too.

We get to the impeller then which has similar errors.

Since we are to do a volumetric mesh we need to do a proper surface mesh, so we have to cover all the cavities in the model with the help of the face tool.

Coming to the major part we are to mesh three components of the turbocharger in 5 mm, THE COMPRESSOR CASING, TURBO CASING AND INLET CASING COVER. so we are choosing cfd mesh in mesh parameters and cfd mesh, providing min and max target length to range between 4.3 & 5.4 since this is for a 5 mm mesh.

After completing the auto cfd spacing and the cfd mesh generation we find the model as shown below

After completing each mesh press freeze in the macros for not wasting your time redoing the mesh again, since there will be errors if not freeze is done. completing the whole meshing and freezing of the model we can find it as such:

The ultimate goal of creating a volumetric mesh is done for the turbocharger of various components and of various total lengths. to check the cross section, click cut plane, new, along x and y axis and make a desired point on the model so it will show how the internal volume is meshed.