Designing and developing new aerospace propulsion systems is time-consuming and expensive. Computational simulation is a promising means for alleviating this cost, but requires a flexible software simulation system capable of integrating advanced multidisciplinary and multifidelity analysis methods, dynamically constructing arbitrary simulation models, and distributing computationally complex tasks. To address these issues, we have developed Onyx, a Java-based object-oriented domain framework for aerospace propulsion system simulation. This paper presents the design of a common engineering model formalism for use in Onyx. This approach, which is based on hierarchical decomposition and standardized interfaces, provides a flexible component-based representation for gas turbine systems, subsystems and components. It allows new models to be composed programmatically or visually to form more complex models. Onyx’s common engineering model also supports integration of a hierarchy of models which represent the system at differing levels of abstraction. Selection of a particular model is based on a number of criteria, including the level of detail needed, the objective of the simulation, the available knowledge, and given resources. The common engineering model approach is demonstrated by developing gas turbine component models which will be used to compose a gas turbine engine model in Part 2 of this paper. [S0742-4795(00)02303-6]
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e-mail: jreed@memslab.eng.utoledo.edu
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July 2000
Technical Papers
Computational Simulation of Gas Turbines: Part 1—Foundations of Component-Based Models
John A. Reed,
e-mail: jreed@memslab.eng.utoledo.edu
John A. Reed
Mechanical, Industrial, and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606
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Abdollah A. Afjeh
Abdollah A. Afjeh
Mechanical, Industrial, and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606
Search for other works by this author on:
John A. Reed
Mechanical, Industrial, and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606
e-mail: jreed@memslab.eng.utoledo.edu
Abdollah A. Afjeh
Mechanical, Industrial, and Manufacturing Engineering Department, The University of Toledo, Toledo, OH 43606
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Indianapolis, IN, June 7–10, 1999; ASME Paper 99-GT-346. Manuscript received by IGTI March 9, 1999; final revision received by the ASME Headquarters May 15, 2000. Associate Technical Editor: D. Wisler.
J. Eng. Gas Turbines Power. Jul 2000, 122(3): 366-376 (11 pages)
Published Online: May 15, 2000
Article history
Received:
March 9, 1999
Revised:
May 15, 2000
Citation
Reed, J. A., and Afjeh , A. A. (May 15, 2000). "Computational Simulation of Gas Turbines: Part 1—Foundations of Component-Based Models ." ASME. J. Eng. Gas Turbines Power. July 2000; 122(3): 366–376. https://doi.org/10.1115/1.1287490
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