Ja. Reed et Aa. Afjeh, Computational simulation of gas turbines: Part 1 - Foundations of component-based models, J ENG GAS T, 122(3), 2000, pp. 366-376
Citations number
24
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME
Designing and developing new aerospace propulsion systems is time-consuming
and expensive. Computational simulation is a promising means for alleviati
ng 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 com
putationally complex tasks. To address these issues, we have developed Onyx
, a Java-based object-oriented domain framework for aerospace propulsion sy
stem simulation. This paper presents the design of a common engineering mod
el formalism for use in Onyx. This approach, which is based on hierarchical
decomposition for gas turbine systems, subsystems and components. It allow
s new models to be composed programmatically or visually to form more compl
ex models. Onyx's common engineering model also supports integration of a h
ierarchy of models which represent the system at differing levels of abstra
ction. Selection of a particular model is based on a number of criteria, in
cluding the level of detail needed, the objective of the simulation, the av
ailable knowledge, and given resources. The common engineering model approa
ch 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].