航空发动机系统级仿真研究的回顾与展望

实践证明计算机仿真是降低发动机研发费用,缩短开发周期的一个重要手段。各国都对此进行了大量研究。其仿真正在从单一的、定制的仿真程序向多学科综合的、适应各种需要的综合的仿真环境发展。本文从航空发动机系统级仿真的角度对国内外近年来在相关仿真软件和系统开发方面的工作做了简要概述和总结。并结合当前航空发动机系统级仿真的现状以及计算机仿真理论的发展,探讨了未来航空发动机系统级仿真的发展趋势。

Recent Development and Prospects of System-Level Modeling of Aircraft Engine

It is time-consuming and expensive to design and develop a new aircraft engine.Computational simulation is a promising means for alleviating cost,much work about it has been done and many achievements have been acquired.In the past,limited computer resources forced component representations to be based on relatively simple equations and empirical data obtained from components and system testings.As the aerospace industry enters the 21st century,there is increasing pressure to reduce the time,cost and risk of aircraft engine development.Now the traditional method for numerical simulation of the gas turbine engine is not suitable.As a result,the common simulation model for aircraft engine becomes important and some research teams are developing these models and some models have been used in aircraft industry.On the other hand,with the in-depth study in various domains relating to the engine,precise models of different parts and different disciplines have been developed.But it is a hard work to integrate these advanced multidisciplinary and multifidelity analysis methods.Thanks to the big progress in computer science and other domains,to construct flexible simulation softwares and integrate different precise models of engine into one system has become possible and realistical.In order to make clear the development direction of the simulation of aircraft engine,the recent development and results have been summarized and the prospects have been studied in this paper.At last some advice on further development of gas turbine simulation is also given for domestic researchers.