Week 3 Challenge : CFD meshing on Turbocharger

AIM : TO PERFORM SURFACE MESHING & VOLUME MESHING ON TURBOCHARGER .

GIVEN :

• Surface meshing target lengths -
• Blade stage-1 = 1 mm
• Blade stage-2 = 1 mm
• Impeller = 2 mm
• Shaft rotor = 1 mm
• Turbo casing = 5 mm
• Compressor casing = 5 mm
• Inlet casing cover = 5 mm

PROCEDURE :

• Open given ANSA file .
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• here we have to show this file in PID mode , so on 'PID' from options
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• this is how we see , after PID mode
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• check all assigned PIDs
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• delete unwanted parts using ( faces - delete OR "universal delete " command )
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• delete assigned PID which we don"t need . used compress command .
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• delete overlapping surfaces . & make a new surface that we need .
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• then here we see some curved parts
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• go to intersect . select 1st part then 2nd part - apply . Delete unwanted part ( intersection error )
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• then go for "cut" option .Make a cut .
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• then delete extra part . ( used Faces - Delete )
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• then create a new surface like this ( using coons option)
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• then in upper side we see an error
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• here we used "transform" command then select entities & creat a new surface .
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• after that , delete that curved lines ( in purple colour )
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• creat remaining surface using coons option
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• here while solving error , we need to creat a new hot point - transform - copy - entities - mirror 3 point planes - symmetry - select 3 hot points - apply - finish . ( don't forgot to select "finish" button )
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• for circular portion uesd " fill hole " command .
• then clear errors in blade. delete overlaping surfaces .
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• here used projrcet command & then delete extra parts .
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• delete red coons in shaft & delete extra parts .
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• delete all overlaping surfaces from body . be careful while selecting
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• before going to surface meshing we have to fill all holes in the given body ( using fitted , coons , fill hole command )
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• check body very carefully
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• this is after clearing all geometric reeors & intersection errors .
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• go for meshing
• classic - perimeters - length - perimeter- macros (5 mm for turbo casing , compressor casing , inlet casing cover)
• mesh generation - spot mesh - visible .
• +
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• impeller mesh target length 2 mm
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• blade stage 1 & 2 & shaft mesh target length is 1 mm
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• view all after all meshing are done
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• Then go for cut section . Cut Plane - New - XY Plane .
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• select new part
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• here we see cut section of turbocharger ( surface mesh )
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• select volume mesh
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• select define from volumes . one pop_up box will shown . click ok
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• check all volumes , & delete outer part of the entities.
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• click to unfinished - select TETRA RAPID type mesh. - ok - REMESH .
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• mesh type - TETRA MESH
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• Here we see cut section of volume mesh
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• 
• DONE !

In this challenge we see following tools :

CUT

TRANSFORM

PROJECT

INTERSECT

SURFACE MESH

VOLUME MESH

DRIVE FILE :

https://drive.google.com/file/d/1qxtgfAUWiK6EPdgiAlbJRlJza8Zwm105/view?usp=sharing