Week 3 Challenge : CFD meshing on Turbocharger

                                                                      CFD meshing on Turbocharger

 Aim:

 To CFD meshing the given component in ansa using the given target length.

Objective:

2D mesh the Turbocharger then CFDMesh the given model by using the following target length,

1.Blade Stage-1 =1mm

2.Blade stage-2  =1mm

3.Impeller =2mm

4. Shaft rotor=1mm

5.Turbo Casing =5mm

6.Compressor casign= 5mm

7. Inlet casing Caver = 5mm

Procedure:

1. Topo Clean up:

• Open the file from the location where we have saved it on our Computer by using the “Ctrl+O” Command.
• Go to the Tool in the ansa
• Select the check 
• Left click on geometry check
• Select the following check-in geometry check

1. Single cons
2. Cracks,
3. Overlap faces
4. Needle faces
5. Trible cons 
6. Collapsed cons
7. Unchecked faces 

• Remove the overlapped surface by Delete the Surface which is over lapped.
• Remove the extended surface by deleting the extended entities and creating a new surface.
• Eliminate void surface by creating the new surface in ansa.
• Check the single Cons by using wireframe mode in ansa by using the combination of the Ctrl+Shift keys.

2. Creating PID

• Go to the PID manager
• Create new PID
• Assign the color for each surface according to the PID that we have created.
• Apply the PID to the Surface.
• Edit the PID according to the given name.
• Compress the unwanted PID.

3.2D mesh:                                                    

• Go to the mesh deck and give the perimeter and macro values as a target length.
• Assign the mesh parameter value
• Go to the quality Criteria and give the minimum and maximum values. 
• Go to the mesh deck, 
• Pick the spot mesh.
• Generate the mesh for the given component.
• Do the same procedure for various target lengths that they are given.
• Check the unmeshed surface
• Regenerate the mesh.

4.3D mesh:

• Go to the 3D mesh deck.
• Select the volume and click on Auto Detect. The 3D volume will appear.
• Delete the unwanted Volume Where the flow won't be.
• Right-click on the volume which is we want.
• Generate 3D mesh 
• Check the 3D model 

Learning Outcomes:

Geometry clean up:

•  Removal of the extended surface.
• Creating a Complicated surface
• Deleting intersected surface

 PID creation for a part

• Compress the unwanted PID
• Creating the New PID   2D mesh 

• Creating 2D mesh 
• Find the unmeshed surface and fix that.3D mesh
• Creating a 3D mesh

Result:

The CFD meshing has been done on the Turbocharger

1. Topo Cleanup: 

 

Fig: Topo clean up  

PID manager:

Fig: PID manager

2D meshing:

Fig:2D meshing

3D meshing:

 

Fig: 3D meshing 

Conclusion: 

Thus, CFD meshing on the given model was successfully generated.