期刊
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
卷 52, 期 8, 页码 1490-1492出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2005.851459
关键词
anisotropic cardiac propagation; dual basis; finite volume method; stiffness matrix; unstructured mesh
资金
- NHLBI NIH HHS [R01HL076767] Funding Source: Medline
The finite volume method (FVM) has been shown recently to be an effective method for discretizing the reaction-diffusion equations that govern wavefront propagation in anisotropic cardiac tissue, as it can naturally handle both complex geometries and no flux boundary conditions without the use of ghost nodes. This communication presents an alternative formulation of FVM for triangle and tetrahedral meshes using the concept of dual basis. An algorithm based on this form is given that leads to an efficient computation of the stiffness matrix, facilitating the incorporation of space adaptive schemes and time varying material properties into numerical simulations of cardiac dynamics.
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