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Adaptive filtering and limiting in compact high order methods for multiscale gas dynamics and MHD systems
KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
2008 (English)In: Computers & Fluids, ISSN 0045-7930, E-ISSN 1879-0747, Vol. 37, no 5, 593-619 p.Article in journal (Refereed) Published
Abstract [en]

The adaptive multistep linear and nonlinear filters for multiscale shock/turbulence gas dynamics and magnetohydrodynamics (MHD) flows of the authors are extended to include compact high order central differencing as the spatial base scheme. The adaptive mechanism makes used of multiresolution wavelet decomposition of the computed flow data as sensors for numerical dissipative control. The objective is to expand the work initiated in [Yee HC, Sjogreen B. Nonlinear filtering in compact high order schemes. In: Proceedings of the 19th ICNSP and 7th APPTC conference; 2005; J Plasma Phys 2006;72:833-36] and compare the performance of adaptive multistep filtering in compact high order schemes with adaptive filtering in standard central (non-compact) schemes for multiscale problems containing shock waves.

Place, publisher, year, edition, pages
2008. Vol. 37, no 5, 593-619 p.
Keyword [en]
HYPERBOLIC CONSERVATION-LAWS, FINITE-DIFFERENCE SCHEME, NAVIER-STOKES EQUATIONS, WAVELET TRANSFORMS, EULER EQUATIONS, FLOWS, MAGNETOHYDRODYNAMICS, INSTABILITY, INTERFACE
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-34303DOI: 10.1016/j.compfluid.2007.07.015ISI: 000255322700011Scopus ID: 2-s2.0-40649112877OAI: oai:DiVA.org:kth-34303DiVA: diva2:420421
Note
QC 20110601Available from: 2011-06-01 Created: 2011-06-01 Last updated: 2011-06-01Bibliographically approved

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