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Modeling of Phenomena Involving Multiple Timescales

What are the difficulties inherent in simulating temporally multiscale phenomena? How do we solve them?
26 Feb 2016

This lecture describes the difficulties inherent in simulating temporally multiscale phenomena, and introduces some mathematical approaches to resolving such difficulties. Situations involving fast and slow physical phenomenon often arise, for example, vibration-induced fatigue of mechanical structures. Vibration happens at a few cycles per second, whereas fatigue takes place over years. But the phenomena are interlinked — fatigue affects vibration, whereas vibration causes fatigue. Simulating such situations on a computer poses a unique challenge: the time resolution required to accurately simulate the fast phenomenon makes the slow phenomenon difficult or impossible to simulate. In this lecture we will see various methods of overcoming this challenge. We will briefly touch upon applications and show some sample simulations using COMSOL.

Presenter: Udayan Kanade.

Venue: Computational Science Research Center, Room 214
Geology, Mathematics and Computer Science building
San Diego State University
5500 Campanile Drive
San Diego, CA 92182

Time: Friday, Feb 26th, 2016 from 3:30pm - 4:30pm

NOUMENON MULTIPHYSICS PROVIDES MULTI-PHYSICS MODELING AND SIMULATION SERVICES TO AUTOMOTIVE, ELECTRONICS, OPTICS, ENERGY, MECHANICAL AND MANUFACTURING INDUSTRY

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