A Cost-Efficient Space-Time Adaptive Algorithm for Coupled Flow and Transport

Fuente: arXiv
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Auteurs principaux: Bruchhäuser, Marius Paul, Bause, Markus
Format: Preprint
Publié: 2022
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author Bruchhäuser, Marius Paul
Bause, Markus
author_facet Bruchhäuser, Marius Paul
Bause, Markus
contents In this work, a cost-efficient space-time adaptive algorithm based on the Dual Weighted Residual (DWR) method is developed and studied for a coupled model problem of flow and convection-dominated transport. Key ingredients are a multirate approach adapted to varying dynamics in time of the subproblems, weighted and non-weighted error indicators for the transport and flow problem, respectively, and the concept of space-time slabs based on tensor product spaces for the data structure. In numerical examples the performance of the underlying algorithm is studied for benchmark problems and applications of practical interest. Moreover, the interaction of stabilization and goal-oriented adaptivity is investigated for strongly convection-dominated transport.
format Preprint
id arxiv_https___arxiv_org_abs_2212_02954
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle A Cost-Efficient Space-Time Adaptive Algorithm for Coupled Flow and Transport
Bruchhäuser, Marius Paul
Bause, Markus
Numerical Analysis
In this work, a cost-efficient space-time adaptive algorithm based on the Dual Weighted Residual (DWR) method is developed and studied for a coupled model problem of flow and convection-dominated transport. Key ingredients are a multirate approach adapted to varying dynamics in time of the subproblems, weighted and non-weighted error indicators for the transport and flow problem, respectively, and the concept of space-time slabs based on tensor product spaces for the data structure. In numerical examples the performance of the underlying algorithm is studied for benchmark problems and applications of practical interest. Moreover, the interaction of stabilization and goal-oriented adaptivity is investigated for strongly convection-dominated transport.
title A Cost-Efficient Space-Time Adaptive Algorithm for Coupled Flow and Transport
topic Numerical Analysis
url https://arxiv.org/abs/2212.02954