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)|
|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
|Date:||02 / 12 / 2010|
|Time:||03:35pm - 04:25pm|