8.2一维定熵稳定流动) One dimensional Isentropic Steady Flow 1. Physical Problem(物理问题) (1 Gas steady flow 气体的稳定流动 (2)The flow in short duct with variable cross- sectional area 变截面短管中的流动 (3)The process is isentropic, that is reversible adiabatic process 可逆绝热的流动过程,即定熵流动8.2一维定熵稳定流动） One dimensional Isentropic Steady Flow 1. Physical Problem （物理问题） (1) Gas steady flow 气体的稳定流动 (2)The flow in short duct with variable cross￾sectional area 变截面短管中的流动 (3)The process is isentropic, that is, reversible adiabatic process 可逆绝热的流动过程，即定熵流动