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Windkessel model Boundary condition

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Old   May 9, 2021, 06:06
Default Windkessel model Boundary condition
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Dear all,

For my project I would like to simulate flow in human arteries.
To accomplish this, I am currently employing GroovyBC at the inlet of the domain and I am still looking for the most convenient way to implement a windkessel model at the outlet.

The windkessel model I would like to implement should result in a pressure boundary condition in which the pressure depends on the flow rate at the outlet.
The windkessel would consist of 3 elements, two resistances and a capacitance. To get a pressure at every timestep of the simulation, I will solve a differential equation for which I need the pressure and flow at the outlet from previous timestep and the flow at the outlet from current timestep. (example:

Would it be possible to implement this BC by using groovyBC? How can I access flow from current and previous timestep at the outlet when using this method?

With kind regards,
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artery, boundary condition p, groovybc, windkessel

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