کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
519844 | 867685 | 2012 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reliable reduced-order models for time-dependent linearized Euler equations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Reliable reduced-order models for time-dependent linearized Euler equations Reliable reduced-order models for time-dependent linearized Euler equations](/preview/png/519844.png)
چکیده انگلیسی
Development of optimal reduced-order models for linearized Euler equations is investigated. Recent methods based on proper orthogonal decomposition (POD), applicable for high-order systems, are presented and compared. Particular attention is paid to the link between the choice of the projection and the efficiency of the reduced model. A stabilizing projection is introduced to induce a stable reduced-order model at finite time even if the energy of the physical model is growing. The proposed method is particularly well adapted for time-dependent hyperbolic systems and intrinsically skew-symmetric models. This paper also provides a common methodology to reliably reduce very large nonsymmetric physical problems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 231, Issue 15, 1 June 2012, Pages 5176–5194
Journal: Journal of Computational Physics - Volume 231, Issue 15, 1 June 2012, Pages 5176–5194
نویسندگان
Gilles Serre, Philippe Lafon, Xavier Gloerfelt, Christophe Bailly,