Singular perturbations and boundary layers

Meeting Details

For more information about this meeting, contact Kristin Berrigan, John Harlim.

Speaker: Gung-Min Gie, University of Louisville in Kentucky

Abstract: Singular perturbations occur when a small coefficient affects the highest order derivatives in a system of partial differential equations. From the physical point of view, singular perturbations generate thin layers located near the boundary of a domain, called boundary layers, where many important physical phenomena occur. In this talk, we introduce a methodology, based on the utilization of correctors as proposed by J.-L. Lions and R. Temam, and use systematically this method of correctors to analyze the boundary layers of certain singularly perturbed fluid equations. We also discuss how to implement effective numerical schemes for slightly viscous fluid equations where the boundary layer correctors play essential roles.

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Room Reservation Information

Room Number: 114 McAllister

Date: 09/23/2019

Time: 12:20pm - 1:30pm