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Mesh

The meshing process is:

1. Create virtual topology to merge surfaces in order to simplify the geometry.

2. Create named selections (inlet, outlet1, outlet2, wall_artery and fluid_zone).

3. Add constraints to the automatic mesh (inflation mesh and body sizing).

4. Preview automatically generated inflation mesh and finally, generate volume mesh.

The videos below show you how to create the mesh for the fluid domain.

Virtual Topology:

Summary of steps in the video above:

model -> insert -> virtual topology
highlight surfaces -> (right click) insert -> virtual cell
repeat the previous step to create other virtual cells

Comparison of surface mesh generated with/without using virtual topology

Mesh generated without using virtual topology. There are more dense cell locations on the surface where the faces come together.

Mesh generated after using virtual topology as shown in the video above. There are less dense cell locations on the surface. The remaining cell-dense regions can be fixed by setting minimum cell size as shown in the third video below.

Named Selection:

Summary of steps in the video above:

face selection filter -> select inlet surface -> (right click) create named selection -> inlet
repeat the steps above to create named selections for the outlet1, outlet2 and wall_artery
body selection filter -> select the whole body -> face selection filter -> unselect inlet, outlet1 and outlet 2 ->(right click) create named selection -> fluid_zone