Analysis of Stretched Grids as Buffer Zones in Aero-Acoustic Simulations
2009 (English)In: 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), 2009Conference paper (Other academic)
A zone of increasingly stretched grid is a robust and easy-to-use way to avoid unwanted reections at artificial boundaries in aero-acoustic simulations. There are two main damping mechanisms, dissipation and under-resolution a traveling wave, respectively. In this paper the behavior of acoustic waves and wave packages, respectively, 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 full non-linear Euler equations.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-77821ScopusID: 2-s2.0-78149449800OAI: oai:DiVA.org:kth-77821DiVA: diva2:492106
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), Miami, Florida, May 11-13, 2009
QC 201202082012-02-072012-02-072012-02-08Bibliographically approved