Constant cp Cv Ideal gas const.specific heat: 0 s(T2 U2)--s(Ti,v1)=coIn+R In T V ->0 T2 sP-Tp）=Gl P2 pi Ideal gas const.specific heat isentropic: 0 (k-1)/k T2 P2 巧刀 (s=S2,constant k) 0= kR Pi Cp= - k-I T2 T (s1=S2,constant k) R 0=colr 02 +R In- D T Ui c=k-1 (S1 S2,constant k) P 上游气通大粤 April 27,2018 6 SHANGHAI JIAO TONG UNIVERSITYApril 27, 2018 6 + Constant cp , cv Ideal gas + const. specific heat: Ideal gas + const. specific heat + isentropic: 0 0