- This event has passed.
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.