以气流马赫数为自变量的新型变比热气动函数

NEW GASDYNAMICS FUNCTIONS WITH VARIABLE SPECIFIC HEAT TAKING MACH NUMBER AS INDEPENDENT VARIABLE

本文给出了以马赫数为自变量的新型变比热气动函数,并对现有的求解变比热热力过程的五类方法,即热力学法、两种常规的和两种新型的变比热气动函数法进行了比较。研究结果表明,在这五类方法中,采用以马赫数为自变量的新型变比热气动函数最为简便。

The new gasdynamics functions with variable specific heat proposed in this paper take Mach number as independent variable. The four existing methods, namely the thermodynamics method, two kinds of conventional gasdynamics functions with variable specific heat and another kind of new gasdynamics functions with variable specific heat are compared with the presented method in solving thermo dynamic processes with variable specific heat. It is shown that the proposed new method is the most convenient.