PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Yuxi Zheng, Kris Jenssen.

Title:Cancelled : Setting off electrical waves in the heart
Seminar:Computational and Applied Mathematics Colloquium
Speaker:Aslak Tveito, Oslo, Norway (Simula Lab)
Abstract:
A heartbeat consists of three main phases; it is initiated by an electrical wave moving through the heart muscle, the electrical wave triggers contraction of the heart muscle that in turn propel blood out of the chambers. Mathematically this leads to three classes of problem; the propagation of the electrical wave is modeled by a system of reaction diffusion equations, the mechanical contraction is modeled by coupling a model elasticity of the muscle to the electrical field, and the flow phase is modeled as a fluid-structure interaction problem. The fully coupled electrical-tissue-fluid problem has never been solved. From a computational perspective, these models are challenging in the sense that the geometry is complex, the solutions are complex and even claimed to be chaotic, and the models tends to be huge both in terms of the number of equations involved and by the number of nodes needed to gain sufficiently accurate solutions. In the present talk, we will focus on the electrical activity of the heart and motivate some of the mathematical challenges arising in that field. In particular, we will focus on the initiation of electrical waves.

Room Reservation Information

Room Number:MB106
Date:02 / 12 / 2010
Time:03:35pm - 04:25pm