Steady State Simulation

The Steady State Simulation simulates the model with fixed characteristics. Tank water levels stay the same during the simulation. If the simulation is not successful, an error message will appear to try to help resolve the issue. The simulation can also be successful with warnings, which imply that something during the simulation was abnormal. Warnings can be due to design issue, too high/low pressures, or due to the model (eg. pipe not properly connected). See appendix E for more detail.

The Pump Priming Simulation simulate the part of the model containing a pump and check if they will be able to run without the help of suction. It is advise to run this tool if the pump needs to pump uphill and then downhill. The normal simulation might show that with the help of the suction on the downhill side, the pump will work properly but until the pipe is full of water, there won't be suction.

Hint:  It is important to have a correctly functioning Steady State Simulation before starting the Dynamic Simulation.

Dynamic Simulation (advanced only)

The Dynamic Simulation will be launched when the Simulation button is clicked. For each time step, a simulation will run and the tank water level will change depending on flow in and out of the tank. The selected scenario can be changed in the toolbar.

The Time Step is a maximum time step; meaning that it can be reduced if an event occurs within the time step. In this case the time step will run until the event and stop. Example: the time step is 1 minute but a tank will be full after 30 seconds, so this time step will be reduced to 30 seconds.

After the simulation, the chart can be displayed by clicking on . Data will be recorded at every fitting (pump, valve, tank etc). The user can also place monitors on the model. The axis range can be adjusted by right clicking on the graph.

Change the color of the graph. The color will be kept for future graphs.

 Update with the latest simulation data.

Different data can be displayed as well as a summary.

Copy the data to the clipboard. It can then be copied to other spreadsheet programs, for example Microsoft Excel.

Takes a snapshot of the graph.