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Plots

This section shows some of the common plots used in the VDVP pump simulation. The steps to create the plots are:

1. Click Load Results in the Simulation Panel.
2. Select the required result file in the ensuing Load Results dialog box, click Open.

Mass Flux

The mass balance is monitored with the mass flux plots.

1. Select port_inlet and port_outlet under Boundaries in the Geometric Entities Panel.
2. Click Add XY-Plot icon in the Toolbar.
3. Click Click for Variable List icon. Select Mass Flux under Flow in the Plot Panel .
4. Click Plot Selected Variables icon, click Plot Property icon in the Plot Property dialog box. Enable Moving Average and enter 280, click OK.
5. Click Combine Entity Data into a Single Curve to obtain the net mass flux.

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Note: The moving average is used in transient simulations to obtain the average behavior over the entire simulation time.It can be specified as, click Click for Variable List icon in Plot Property and enable Moving Average. The value in the Moving Average input is number of preceding time steps (sampling interval) for calculating the average.

 

Angle Displacement

1. Select Rotation (1 DOF) under Model Panel.
2. Click Add XY-Plot icon in the Toolbar.
3. Click Click for Variable List icon in Plot Panel toolbar, select Angle displacement in the Rotation (1 DOF) list.
4. Click Plot Selected Variables icon, click Plot Property icon in the Plot Property dialog box. Enable Moving Average and enter 140, click OK.

Power

The instantaneous integrated power about the axis of rotation for the rotor and vane is plotted.

To create the plot for the power:

1. Select rotor and vane under Boundaries in the Geometric Entities Panel.
2. Click Add XY-Plot icon in the Toolbar.
3. Click Click for Variable List icon in Plot Panel toolbar, select Revolution Average Power in the Vane list.
4. Click Combine Entity Data into a Single Curve to obtain the power.