Gas containment with output

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Tomas Iesmantas 2011-3-14

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Hello, I'm modelling gas flow system and what is quite strange that SimHydraulic doesn't have any container with output: constant volume chamber has just input port. Maybe it is possible to construct with simulink blocks some chamber (like constant volume chanber), but with output orifice? Or maybe it is possible to use other blocks (even I couldnt find any) to use instead?

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Arnaud Miege 2011-3-14

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SimHydraulics is not designed for modelling gas flow systems, only (hydraulic) fluids. You can use the Simscape pneumatic foundation library instead. Note that it uses the ideal gas law approximation. More details are available in the documentation.

HTH,

Arnaud

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Tomas Iesmantas 2011-3-14

But unfortunately, there is no way to view source code for hydraulic chamber. Maybe you have any sugestions for hydraulic systems? ( something like two-port Constant Volume Hydraulic Chamber, I mean).

Arnaud Miege 2011-3-14

Don't use the hydraulic blocks for pneumatic simulations, the equations are different for hydraulic and pneumatic systems - and the assumptions used to derive those equations are also different. Forget about the hydraulics for your problem.

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