Hierarchical model reduction techniques for flow modeling in a parametrized setting

Keywords

Advanced Numerical Methods for Scientific Computing
Code:
35/2019
Title:
Hierarchical model reduction techniques for flow modeling in a parametrized setting
Date:
Wednesday 4th September 2019
Author(s):
Zancanaro, M.; Ballarin, F.; Perotto, S.; Rozza, G.
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Abstract:
In this work we focus on two different methods to deal with parametrized partial differential equations in an efficient and accurate way. Starting from high fidelity approximations built via the hierarchical model reduction discretization, we consider two approaches, both based on a projection model reduction technique. The two methods differ for the algorithm employed during the construction of the reduced basis. In particular, the former employs the proper orthogonal decomposition, while the latter relies on a greedy algorithm according to the certified reduced basis technique. The two approaches are preliminarily compared on two-dimensional scalar and vector test cases.