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Analysis of stretched grids as buffer zones in aero-acoustic simulations in two space dimensions
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-9061-4174
2015 (English)In: 22nd International Congress on Sound and Vibration, ICSV 2015, International Institute of Acoustics and Vibrations , 2015Conference paper (Refereed)
Abstract [en]

A zone of increasingly stretched grid is a robust and easy-to-use way to avoid unwanted reflections at artificial boundaries in aero-acoustic simulations. There are two main damping mechanisms, dissipation and under-resolution of a traveling wave, respectively. In this paper the behavior of acoustic waves in two space dimensions are studied via analysis of solutions to a semi-discrete linear boundary value problem. The solutions of the linear problem is compared to solutions of the linearized Euler equations.

Place, publisher, year, edition, pages
International Institute of Acoustics and Vibrations , 2015.
Keyword [en]
Boundary value problems, Aero-acoustic simulation, Artificial boundaries, Damping mechanisms, Linear boundary value problem, Linear problems, Linearized EUler equation, Space dimensions, Traveling wave, Aeroacoustics
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194755ScopusID: 2-s2.0-84971268041ISBN: 9788888942483 (print)OAI: oai:DiVA.org:kth-194755DiVA: diva2:1046865
Conference
22nd International Congress on Sound and Vibration, ICSV 2015, 12 July 2015 - 16 July 2015
Note

QC 20161115

Available from: 2016-11-15 Created: 2016-10-31 Last updated: 2016-11-15Bibliographically approved

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  • apa
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