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Real-Time Reliable Simulation of Heat Transfer Phenomena

Author(s)
Rozza, G. (Gianluigi); Huynh, Dinh Bao Phuong; Nguyen, Ngoc Cuong; Patera, Anthony T.
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DownloadPatera_Real time.pdf (1.312Mb)
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Abstract
In this paper we discuss the application of the certified reduced basis method and the associated software package rbMIT (c) to "worked problems" in steady and unsteady conduction. Each worked problem is characterized by an input parameter vector --- material properties, boundary conditions and sources, and geometry --- and desired outputs --- selected fluxes and temperatures. The methodology and associated rbMIT(c) software, as well as the educational worked problem framework, consists of two distinct stages: an Offline (or "Instructor") stage in which a new heat transfer worked problem is first created; and an Online (or "Lecturer"/"Student") stage in which the worked problem is subsequently invoked in (say) various in--class, project, or homework settings. In the very inexpensive Online stage, given an input parameter value, the software returns both (i) an accurate reduced basis output prediction, and (ii) a rigorous bound for the error in the reduced basis prediction relative to an underlying expensive high-fidelity finite element discretization; as required in the educational context, the response is both rapid and reliable. We present illustrative results for two worked problems: a steady thermal fin, and unsteady thermal analysis of a delamination crack.
Description
The first URL is to the main conference page; the second is to a random site that houses bib data and the paper.
Date issued
2009-07
URI
http://hdl.handle.net/1721.1/62003
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
Proceedings of the 2009 ASME Summer Heat Transfer Conference, HT2009
Publisher
American Society of Mechanical Engineers
Citation
Rozza, G. et al. "Real-Time Reliable Simulation of Heat Transfer Phenomena." Proceedings of HT2009, 2009 ASME Summer Heat Transfer Conference July 19-23, 2009, San Francisco, California, USA © 2009 ASME.
Version: Final published version
Other identifiers
HT2009-88212

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