adiabatic index of ideal gases

Study on measuring the adiabatic exponent of air with standing wave method;

驻波法测量空气绝热指数的研究

This report describes the features of graphic calculator,CBL and Si pressure sensor,and their application in accurately measuring the adiabatic exponent of air.

介绍图形计算器、CBL及硅压力传感器系统特性 ,并用于精确测量空气绝热指

Considering Cauchy problem of 1-D compressible fluide with adiabatic exponent 1,under some reasonable assumptions,a sufficient and necessary term is obtained for guaranteeing the global existence of classical solutions,this result is a supplement and a perfecting for the existed related documents.

考虑具绝热指数1的一维非等熵可压流体力学方程组的Cauchy问题,在一些合理假设下,得到了其整体经典解存在的一个充分必要条件,这一结果是对已有相关文献的补充和完善。