论文部分内容阅读
为了解决航空发动机总体性能计算中,主要的等熵膨胀过程数学模型中存在理想状态值的计算,使计算结果与实际值相比产生一定误差的问题.从过程效率定义式入手,推导出基于Φ函数的等熵膨胀过程数学模型.与基于熵的等熵膨胀过程数学模型以及带理想状态值计算的等熵膨胀过程数学模型的计算结果进行比较与分析之后,得出结论是:①基于Φ函数的等熵膨胀过程数学模型的应用可使计算精度得到提高;②基于Φ函数的等熵膨胀过程数学模型的应用较为简便,可以提高编程效率和计算效率.
In order to solve the problem of calculating the ideal state value in the main mathematical model of isentropic expansion process in order to solve the calculation of aeroengine’s overall performance, the calculation result has a certain error compared with the actual value.From the definition of process efficiency, Function isentropic expansion process.Compared with the mathematical model of isentropic expansion process based on entropy and the calculation results of the mathematical model of isentropic expansion process with ideal state value calculation, The application of the mathematical model of isentropic expansion process can improve the calculation accuracy. (2) The application of the mathematical model of isentropic expansion process based on Φ function is simple and can improve the programming efficiency and computational efficiency.