Coupling Finite Element Meshes for Heart Modeling
Author Information
Author(s): Bruce Hopenfeld
Primary Institution: Angel Medical Systems, Tinton Falls, New Jersey, USA
Hypothesis
Can a finite element curvilinear mesh be effectively coupled to a finite element voxel mesh for heart simulations?
Conclusion
The method produces reasonably accurate results and is suitable for problems prioritizing computational speed over high accuracy.
Supporting Evidence
- The method allows for quick assembly of a complete system matrix.
- Relative error in simulations converged to slightly over 4%.
- The approach is beneficial for prototyping where high accuracy is not initially required.
Takeaway
This study shows a way to connect different types of computer models of the heart, making it easier to simulate how the heart works.
Methodology
The method involves creating a scaffolding mesh to couple a curvilinear heart mesh with a voxel torso mesh, followed by computing the stiffness matrices and assembling a complete system matrix.
Limitations
The scheme converges slowly after a certain accuracy level and may not fit sharp corners of boundary nodes well.
Digital Object Identifier (DOI)
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