Pump
- Rotating
The
rotating pump example demonstrates two interesting features namely the use
of an arbitrary sliding interface and also regions of the flow domain that
become disconnected from the rest during the solution.
-
Arbitrary sliding interface: The outer boundaries of the three annular
sections between the blades connect to the rest of the flow domain through
an arbitrary sliding interface. This means that there are no one-to-one
mapping of cell faces and also that the connectivity changes every time
the fan moves.
-
Disconnected regions: At some point one of the three rotating
annular sections becomes disconnected from the rest of the flow domain as
can be seen from Figure 1 below (the green cells). During this time this
region functions on its own and is treated as a separate fluid
stream.
Figure 2
below shows velocity vectors in a section through the fan.
