How can we implement a variable pressure generator?

[J-Anoop]

Hello Dr. Torsten. I am trying to implement a LPM for coronary circulation using CSM.jl library. I watched your Juliacon2023 workshop on youtube, and was able to get up to speed. Appreciate your and Harry's efforts on that. I am trying to reproduce results from an article " Pietrabissa, Riccardo, et al. "A lumped parameter model to evaluate the fluid dynamics of different coronary bypasses." Medical engineering & physics 18.6 (1996): 477-484." In there, they mention a variable pressure generator, which follows a similar pressure proile as a left ventricle. Its shown in an image below.

How do we implement this VPG? is it similar to for eg. a shichamber? but then wont it also contribute to flow there?

[TS-CUBED]

Hello. Interesting project.

If you have an external function that describes the pressure, you can use the DrivenPressure element for this.

Just define a function of t, and then pass that function as the fun=yourFunction argument.

Note that function needs to be differentiable, and you may need to @register it. I don't know the paper, so cannot say if the function is going to work.

Let me know how it goes and send me a small code snippet (MWE), then I can have a look.