Flexible Discretization for Computational Aeroacoustics

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Abstract

This contribution discusses the capabilities of non-conforming grid techniques to allow an optimal discretization for each subdomain. In doing so, we derive the Nitsche-type mortaring formulation for the acoustic wave equation, which incorporates the physical transmission condition of continuity of acoustic pressure and its flux being the normal component of the acoustic particle velocity. The Nitschetype mortaring handles the coupling by symmetrizing the bilinear form and adding an appropriate jump term. The simulation of the edge tone demonstrates the applicability and superiority of non-conforming grids for computational aeroacoustics at low Mach numbers compared to conforming finite element methods
Originalspracheenglisch
Titel14th World Congress on Computational Mechanics (WCCM) ECCOMAS Congress 2020
Herausgeber (Verlag)ECCOMAS
Seitenumfang11
DOIs
PublikationsstatusVeröffentlicht - 2021
Veranstaltung14th World Congress on Computational Mechanics - Virtuell, Frankreich
Dauer: 11 Jan 202115 Jan 2021

Konferenz

Konferenz14th World Congress on Computational Mechanics
KurztitelWCCM-ECCOMAS 2020
LandFrankreich
OrtVirtuell
Zeitraum11/01/2115/01/21

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