The shifted Nitsche method: A new approach to embedded boundary conditions


Tuesday, 9 May, 2017 - 16:00

Speaker: Prof. Guglielmo Scovazzi, Duke University

Place: Room A-005, SISSA main Campus, Via Bonomea 265, Trieste
Time: 4:00PM
Date: Tuesday, May 9, 2017
The seminar is also part of the activity of the local SISSA SIAM student chapter.

Title: The shifted Nitsche method: A new approach to embedded boundary conditions

Abstract: Embedded boundary methods obviate the need for continual re-meshing in many applications involving rapid prototyping and design. Unfortunately, many finite element embedded boundary methods for incompressible flow are also difficult to implement due to the need to perform complex cell-cutting operations at boundaries. We present a new, stable, and simple embedded boundary method, which we call “the shifted Nitsche method.” The proposed method eliminates the need to perform cell cutting, and demonstrate it on large-scale incompressible flow problems, solid mechanics, shallow water flows. 

Biographical Sketch: 
Guglielmo Scovazzi earned B.S./M.S. Degrees in Aerospace Engineering at Politecnico di Torino in 1998. He received a M.S. in 2001 and a Ph.D. in 2004, both  in Mechanical Engineering, from Stanford University. Between 2004 and 2012, he worked as Senior Member of the Technical Staff at Sandia National Laboratories, Albuquerque (New Mexico), and since August 2012, he is Associate Professor in the Civil & Environmental Engineering Department at Duke University, with a secondary appointment in the Mechanical Engineering and Materials Science Department. 
Guglielmo Scovazzi is a recipient of the 2014 Early Career Award from the Office of Science of the US Department Of Energy (ASCR program), and the 2017 PECASE award.
His interests are in the general area of computational mechanics, and more specifically in computational fluids and solid mechanics, fluid/structure interaction, and flow through porous media. He is a member of the Editorial Board of the International Journal on Numerical Methods in Fluids, and a Member of SIAM and USACM.