NDLI: A System Dynamics Modeling Methodology to Predict Transient Phenomena in Compressible Fluid Flow Systems

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Follen, Kenneth Stockar, Stephanie Canova, Marcello Guezennec, Yann Rizzoni, Giorgio
Copyright Year	2011
Abstract	The prediction of dynamic phenomena in compressible fluids, such as the air path systems of Internal Combustion Engines (ICEs) has seen an enormous growth in the past years. Striving to improve engine performance, fuel economy and emissions has led to the understanding that significant gains can only be achieved if improvements in engine design can be matched by the ability to closely control engine breathing and combustion performance. The current state of the art in the modeling of ICEs air path systems presents two main approaches, namely the high-fidelity, computationally intensive numerical methods and the low-fidelity, calibration intensive lumped-parameter models. This paper introduces a novel approach for modeling unsteady phenomena in compressible fluids that combines the advantages of numerical methods (high accuracy and low calibration effort) with the limited computation time of lumped-parameter models based on ordinary differential equations (ODEs). The approach is here presented for the one-dimensional nonlinear Euler equations for compressible fluid flow systems, which are particularly relevant for modeling the air path systems of internal combustion engines.
Sponsorship	Dynamic Systems and Control Division
Starting Page	611
Ending Page	617
Page Count	7
File Format	PDF
ISBN	9780791854761
DOI	10.1115/DSCC2011-5944
Volume Number	ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2
Conference Proceedings	ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
Language	English
Publisher Date	2011-10-31
Publisher Place	Arlington, Virginia, USA
Access Restriction	Subscribed
Subject Keyword	System dynamics Engine design Combustion Calibration Modeling Engines Transients (dynamics) Emissions Fluids Numerical analysis Fuel efficiency Computation Internal combustion engines Differential equations Corporate average fuel economy Compressible flow
Content Type	Text
Resource Type	Article

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