Kinematic equation of one-dimensional isoentropic nonsteady air was used to calculate system parameters for reference of design and experiment.
文中利用一维等熵非定常气体的运动方程计算系统的各参数，并把所得参数作为设计和试验的参考数据。
2
Nonsteady flow method is usually used to conduct water drive test for low permeability reservoir, but it is less accurate and cannot meet production need.
通常对于低渗储层进行水驱油测试采用非稳定流方法，但该测试方法准确性较差，不能满足生产要求。
3
Aimed at nonsteady spray combustion flow problems of regenerative liquid propellant gun (RLPG) in process of interior ballistic, mathematical model was established, and numerical method was derived.