Seminar "On Diffusive and Stochastic Transport barriers" by Dr. Florian Kogelbauer

Date

2021年12月7日 (火) 16:00 17:00

Location

Lab1 C016

Description

[Speaker]

Dr. Florian Kogelbauer

National Institute of Advanced Industrial Science and Technology, Sendai, Japan

 

[Abstract]

We present a theory of transport extremizers for scalar advection-diffusion equations and its applications to geophysical fluid flow data. Based on a variational principle in conjunction with a singular perturbation analysis of the corresponding PDE, we derive a concentration-independent description of transport barriers as closed trajectories of a dual differential system. This allows us to develop a streamlined numerical scheme for the detection of coherent structures in various flows on the fluid earth such as Agulhas rings.

 

[Zoom link]

https://oist.zoom.us/j/98621476343?pwd=eXV0NzhFemhIZVlzWnFUbk1jeHhZQT09

 
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