FSI Stenotic Coronary Arteries

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I am currently working on replicating a study by Carvalho et al. (2022) (https://www.intechopen.com/chapters/80150) involving blood flow through coronary arteries.

I have successfully set up and run the standalone CFD simulation (Fluid Flow), and the results look correct. However, I am now trying to transition the model into a Fluid-Structure Interaction (FSI) simulation to couple the blood flow with the deformation of the arterial wall.

Unfortunately, COMSOL keeps throwing convergence errors, and the solver fails to find a solution.

Any advice please?


1 Reply Last Post 9 juin 2026, 17:02 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 2 hours ago 9 juin 2026, 17:02 UTC−4

Hello Ludek,

Consider uploading you .mph file. Without one,it'd be difficult for Discussion Forum readers to give you much insight into what could be improved.

Best,

Jeff

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Jeff Hiller
Hello Ludek, Consider uploading you .mph file. Without one,it'd be difficult for Discussion Forum readers to give you much insight into what could be improved. Best, Jeff

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