Building the Mesh

This section describes the step-by-step procedure for preparing the mesh for the piston fluid domain. The Piston Cooling Template Mesher is used for creating the mesh.

Piston Fluid Mesh

Select Piston Cooling Template Mesher in the Mesh Panel.
Enter the parameters as follows:
- Piston Motion Direction: 0,0,1
- Jet Direction: 0,0,1
- Con-Rod Length: 0.11
- Crank Radius: 0.036924
Enter -0.135,0,0 m for Gallery Ring Center under Gallery.
Select CAD Surfaces pistonfluid_gallery in the Geometric Entities Panel and click Add Surfaces icon next to Gallery Surfaces in the Properties Panel.
Select CAD Surfaces pistonfluid, click Add Surfaces icon next to Piston UnderCrown Surfaces. Select CAD Surfaces pistonfluid_mgi, click Add Surfaces icon next to Piston Cylinder MGI Surfaces. Similarly select CAD Surfaces pistonfluid_others, click Add Surfaces icon next to Other Piston Surfaces.
Select CAD Surfaces nozzle_inlet, click Add Surfaces icon next to Inlet Surface. Select CAD Surfaces nozzle_mgi, click Add Surfaces icon next to Nozzle Cylinder MGI Surface. Similarly, select CAD Surfaces nozzle_wall, click Add Surfaces icon next to Nozzle Walls.
Select CAD Surfaces cylinder_outer in the Geometric Entities Panel, click Add Surfaces icon next to Cylinder Surface in the Properties Panel.
Click Build Piston Cooling. The new mesh piston is created under Built Meshes in the Geometric Entities Panel.
The meshed volumes cylinder, gallery, jet, nozzle and piston_fluid are generated under Volumes.

Figure 7.226 - Piston fluid mesh settings

The mesh created for the fluid domain is shown below:

Figure 7.227 - Mesh - Full view

Figure 7.228 - Cross-sectional view