摘要
结合模块化建模的方式,引入容积效应,推导了燃气涡轮变比热计算的数学模型。此外,还采用新型面向对象的仿真语言Modelica,建立可扩展的燃气涡轮仿真库;同时在Dymola平台上,利用仿真库和其它程序库,搭建单轴燃气涡轮发动机模型,对燃气涡轮动态过程进行变比热计算。与软件Gasturb和定比热计算结果对比,证明变比热计算的合理性和有效性,验证了该仿真方法的可行性,表明该方法有推广应用的价值。图7参5。
Considering volumetric effects, combined with modular modeling, a mathematical model for calculating the varying specific heat in gas turbines has been deduced. Furthermore, an extensible simulation library for gas turbines has been elaborated by using the new object-oriented simulation language ——Modelica. Simultaneously, by using the simulation library and other program libraries, a single shaft gas turbine model is built on the platform Dymola and the dynamic behavior of the turbine calculated with specific heat considered variable. Compared with the calculation result by software Gasturb as well as that obtained by the constant specific heat method, the present method is verified to be reasonable and effective, the simulation used to be feasible and its application worthy of popularization.
出处
《动力工程》
EI
CSCD
北大核心
2006年第6期799-803,共5页
Power Engineering
关键词
动力机械工程
燃气涡轮
变比热
仿真
power and mechanical engineering
gas turbine
variable specific heat
simulation
