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Virtual LANS Seminar

November 18, 2020 @ 10:30 - 11:30 CST

Seminar Title: Multiscale Model Reduction for Applied Problems in Heterogeneous Media
Speaker: Maria Vasilyeva, Postdoctoral Research Associate, Institute for Scientific Computation, Texas

Date/Time: November 18, 2020 / 10:30 AM – 11:30 AM
Location: See meeting URL on the cels-seminars website (requires Argonne login)


Description:

Many real-world applications occur in heterogeneous media, for example, subsurface flow and processes in composite materials. For an accurate numerical solution, we should use a very fine grid that resolves all small-scale heterogeneities. To reduce the size of the system, the upscaling technique or multiscale method is used.

In this work, we present the construction of the reduced-order model using the Generalized Multiscale Finite Element Method (GMsFEM) and the NonLocal MultiContinua upscaling technique (NLMC).  These methods involve two basic steps: (1) the construction of multiscale basic functions that take into account small-scale heterogeneities in the local domains and (2) the construction of the coarse-scale approximation on a multiscale space. We present numerical results for several applied problems with different types of heterogeneities.

Please note that the meeting URL for this event can be seen on the cels-seminars website, which requires an Argonne login.

Details

Date:
November 18, 2020
Time:
10:30 - 11:30 CST
Event Category:

Venue

https://wordpress.cels.anl.gov/cels-seminars/event/virtual-lans-seminar-33/