Fluids

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From version 2.3 on there are elements to simulate fluids. We tried to model the behaviour of the fluids as realistically as possible, but we had to make severe simplifications. It was our aim to enable a PLC programmer to simulate programs with containers, pipes, pumps, and valves. It was not our aim to create a tool that helps designing such machines.

The fluids in TrySim consists of a mixture up to 16 different media. Each medium has a name, a density and a viscosity. The resulting properties of the mixture are calculated by an averaging that is weighted by share of the several media. If this simplification is too big you will have the possibility to transform media into each other by the reactor and to lead to the wanted properties doing this.

The best way to construct your machine is to start with a container. On its edit mask you click the check box ‘source’, then it is always filled, no matter how much fluid you take. After that you install further containers and connect them to each other by pumps, valves and pipes. For easier use the pumps and valves are already connected to a straight pipe. Only if you want to go around corners you will have to put a pipe explicitly.

The ends of these elements are either connected to a container or they are connected to each other by a flange. You can connect several pipes to a flange as well. You have to consider the geometrical proportions. That means if you want to take fluid out off a container that is half-full by a pump, the pump will have to be connected to the lower half of the container, otherwise it will only pump air.

The PLC gets the necessary information for operating the machine by the level gauge, the level switch, the flow meter, the pressure sensor and the analyzer.

The fluidor transform dynamics in fluids, dissolves them, so to say.

See also:

Static elements of simulation