Block preconditioning with approximate inner solvers for incompressible flow problems based on IgA discretization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F23%3A43971350" target="_blank" >RIV/49777513:23520/23:43971350 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.ugn.cas.cz/event/2023/sna/files/sna23-sbornik.pdf" target="_blank" >https://www.ugn.cas.cz/event/2023/sna/files/sna23-sbornik.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Block preconditioning with approximate inner solvers for incompressible flow problems based on IgA discretization

Popis výsledku v původním jazyce

We focus on effcient numerical solution of the steady incompressible Navier-Stokes equations (NSE) using our in-house solver based on the isogeometric analysis (IgA) approach. The B-spline/NURBS discretization basis has several speciffic properties different from standard finite element basis, most importantly a higher interelement continuity leading to denser matrices. Our aim is also to developed efficient solver of these systems by a preconditioned Krylov subspace method. In this contribution, we focus on efficient approximate solvers suitable for solving subsystems within several state-of-the-art block preconditioners.

Název v anglickém jazyce

Block preconditioning with approximate inner solvers for incompressible flow problems based on IgA discretization

Popis výsledku anglicky

We focus on effcient numerical solution of the steady incompressible Navier-Stokes equations (NSE) using our in-house solver based on the isogeometric analysis (IgA) approach. The B-spline/NURBS discretization basis has several speciffic properties different from standard finite element basis, most importantly a higher interelement continuity leading to denser matrices. Our aim is also to developed efficient solver of these systems by a preconditioned Krylov subspace method. In this contribution, we focus on efficient approximate solvers suitable for solving subsystems within several state-of-the-art block preconditioners.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10102 - Applied mathematics

Projekt

<a href="/cs/project/TK04020250" target="_blank" >TK04020250: Moderní metody pro tvarovou optimalizaci Francisových turbín</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů