Implicit-IMOR method for index-1 and index-2 linear constant DAEs

N. Banagaaya, G. Ali, W.H.A. Schilders

Research output: Book/ReportReportAcademic

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Abstract

The index-aware model order reduction (IMOR) method for differential-algebraic equations (DAEs) is based on the decomposition of a DAE into differential and algebraic parts, depending on its tractability index. Then, the differential part is reduced by using existing MOR methods for ODE, and this reduction induces a reduction on the algebraic part, which can be further enhanced. However the IMOR method involves matrix inversions which may limit its practicability in some real-life examples. In this paper a modified IMOR method is presented, which does not involve matrix inversion.
Original languageEnglish
Place of PublicationEindhoven
PublisherTechnische Universiteit Eindhoven
Number of pages28
Publication statusPublished - 2014

Publication series

NameCASA-report
Volume1410
ISSN (Print)0926-4507

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