Hello,
I am using OpenCARP for simulations and have encountered some issues. May you please provide some solutions?
The model I am using consists of two types of elements: Line (Ln) and tetrahedra (Tt). The model is as shown in the image, with the endpoint of the Line on the right connected to a vertex on the left of the cuboid. My goal is to stimulate the Line on the far left and have the excitation propagate to the cuboid on the right.
![](https://z1.ax1x.com/2023/11/01/piumWtI.png)
However, when I try to stimulate the Line by transmembrane current, I found that the excitation of Line on the left does not propagate to the right tetrahedral elements. I used "Time Series" in Meshalyzer to observe changes in transmembrane potential at the intersection point and found that the maximum value at the intersection point is -66. Therefore, I believe that there is no action potential generated at this location.
![](https://z1.ax1x.com/2023/11/01/pium51f.png)
However, when I disconnect the Line from the cuboid and check the action potential at the original intersection point, as shown in the image, action potentials are generated after the disconnection.
![](https://z1.ax1x.com/2023/11/01/piumojS.png)
Referring to previous Q&A from other users, I tried to connect the endpoint of the Line to about 10 vertices of cuboid, but the problem remains unsolved.
Can you please suggest what modifications I need to make to enable the excitation to propagate normally to the cuboid on the right?
Thank you in advance for your assistance!