摘要
文章针对热声疲劳测试中的传热问题提出了一种基于控制框图的新型建模分析方法,并用此方法分析了高温行波管内的多物理场耦合问题,同时针对模型的可靠性进行了试验和高精度数值仿真计算验证。研究表明,该方法可以针对多种工况快速有效地分析和仿真行波管内测试段的动态传热过程,满足工程设计快速预测的需求。
A new lumped element model for the high temperature and high intensity sound progressive wave tube is developed, based on the associated physical principles and the classical control modeling methods. The heat transfer dynamics in thermal-acoustic fatigue tests can be predicted rapidly by the new model. The accuracy of this model is verified by comparing to experimental and computational results. The modeling method used in this work clarifies the complex coupled physics and its applications can be found in designs and evaluations of thermal-acoustic experiments.
出处
《航天器环境工程》
2014年第2期141-145,共5页
Spacecraft Environment Engineering
基金
国家自然科学基金项目(编号:90916003)
国家自然科学基金优秀青年科学基金项目(编号:11322222)
北京机电工程研究所横向合作课题"声场流场与热场耦合效应研究"
关键词
热声耦合
热声疲劳
行波管
动态建模
thermal-acoustic coupling
thermal-acoustic fatigue
progressive wave tube
dynamic modeling
