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Simulated outlet pressures increase with every cardiac cycle

Posted: Tue Jan 23, 2024 2:22 pm
by joannesarsam
Hello,

I am running an svFSI simulation, with rigid wall conditions and RCR BCs, as the first step in a prestress- fluid structure interaction workflow.

I ran my simulation for 5000 time steps (5 cardiac cycles). When I plot the velocities outputted from the simulation, i get reasonable results:
inlet_velocities.png
inlet_velocities.png (49.72 KiB) Viewed 949 times
However, in plotting the outlet or inlet pressures, I find that with each cycle the pressures are increasing. I'm not sure what could be causing this:
outlet_pressures.png
outlet_pressures.png (45.04 KiB) Viewed 949 times

Here is a link to the model, mesh, histor.dat file, inp file, and input flow file. https://drive.google.com/drive/folders/ ... drive_link

Thanks!
Joanne

Re: Simulated outlet pressures increase with every cardiac cycle

Posted: Tue Jan 30, 2024 11:04 am
by joannesarsam
Hello,

I would like to follow up on this question, as I'm still struggling to figure out the issue. thanks!

Re: Simulated outlet pressures increase with every cardiac cycle

Posted: Sun Mar 24, 2024 2:56 am
by pawanpal
hello sir

the graph you plot is inlet velocity or a inlet flow on the face side