Plots

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

Click Load Results in the Simulation Panel.
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.

Select inlet_inlet and outlet_outlet under Boundaries in the Geometric Entities Panel.
Click Add XY-Plot icon in the Toolbar.
Click Click for Variable List icon in Plot Panel toolbar, select Mass Flux in the Flow list.
Click Plot Selected Variables icon. Click Plot Property icon, the Plot Property dialog box opens. Enable the Moving Average and enter 360, click OK.
Click Combine Entity Data into a Single Curve to obtain the net mass flux.

Figure 6.504 - Mass flux

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.

Pressure

The pressure is plotted at the monitoring points Cylinder_point and Outlet_point. The plot is obtained as follows:

Select Cylinder_point and Outlet_point under Points in the Geometric Entities Panel.
Click Add XY-Plot icon in the Toolbar.
Click Click for Variable List icon in Plot Panel toolbar, select Pressure in the Flow list.
Click Plot Selected Variables icon in the Plot Panel.

Figure 6.505 - Pressure

Power

Power is the instantaneous integrated power of a boundary rotating about the Rotational Axis Vector of the Piston/Cylinder assembly. Plot the power as follows:

Select piston_wall under Boundaries in the Geometric Entities Panel.
Click Add XY-Plot icon in the Toolbar.
Click Click for Variable List icon in Plot Panel toolbar, select Power in the Flow list.
Click Plot Selected Variables icon to obtain the power.

Figure 6.506 - Power

Pocket Total Volume

The Pocket Total Volume is monitored at the cylinder pocket. Plot the Pocket Total Volume as follows:

Select Cylinder_point under Points in the Geometric Entities Panel.
Click Add XY-Plot icon in the Toolbar.
Click Click for Variable List icon in Plot Panel toolbar, select Pocket Total Volume in the Bent Axis Piston list.
Click Plot Selected Variables icon in the Plot Panel toolbar.

Figure 6.507 - Pocket total volume