Week 3 Challenge : CFD meshing on Turbocharger

Aim/Objective

For the given model:

• To check for the geometrical errors to make appropriate volumes.
• Create and assign PIDs.
• Perform surface mesh with the given target lengths as per PIDs.
• Perform Volumetric mesh for the required volumes.

Procedure for surface meshing & Volume meshing process

> Geometrical errors are solved in Topo mode.

> PIDs are created and assigned for the required volumes after solving geometrical errors.

> As Surface mesh is pre-requisite of volumetric mesh such that surface mesh is performed with the given target lengths as

per PIDs.

> Target length is specified in material properties for different PIDs:

• 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

> After surface meshing volumetric mesh is performed for the required volumes.

> Volumes are defined by:

Volumes --> Define --> Detect on: Whole db

> After detecting volumes only the required volumes are prefered for volumetric mesh.

> Tetra CFD mesh is used for volume meshing.

Results

Volumetric meshed model for the required volumes

> Cut section view after volumetric mesh is given below:

xy_cut plane

yz_cut plane

ANSA model of turbocharger:

https://drive.google.com/file/d/1QIJs5zVZhPOXhA2qcDAAetIDjHhpZKJG/view?usp=sharing