6.1.1 Geometry and Domain
The simulation of the centrifugal pump requires the understanding of the geometry of the pump and the fluid domain enclosed by the surfaces. The general fluid volume of the centrifugal pump and prerequisite steps, before taking into Simerics-MP+ is described as follows:
Prerequisite steps
- The Impeller chamber needs to be separated from the Volute and Inlet.
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Ensure that Impeller volume is axis symmetric.
Figure 6.1 - Centrifugal pump surfaces
Fluid Domain
This section explains a general fluid domain for the centrifugal simulation in Simerics-MP+.This fluid volume in a centrifugal pump is defined by CAD Surfaces which enclose them. The centrifugal model primarily consists of the following parts/ volumes as shown in Figure 6.2
Inlet: The fluid enters the pump through the Inlet boundary. The inlet boundary is a part of this volume which is specified as a pressure or flux. The other surfaces of the inlet volume are treated as walls.
Impeller: Rotating fluid volume
Volute: The fluid exits the pump at the Outlet boundary. The outlet boundary is a part of this volume which is specified as a pressure or flux. The other surfaces of the outlet volume are treated as walls.
For an example of the centrifugal pump simulation, refer Centrifugal Pump Tutorial.