Pallabazzer 



/S; - ^= /3e(l + /^ho) = 1 + /3hi + /3p + /3o(V^-^) 





(4) 



The total energy balance between section (i) and the current section, which 

 are aligned, can be written as 





igm^h. . mH(— + Y I + "iJ Jgh + 



This equation can be developed, by means of definitions and of thermodynami- 

 cal relations, as 



'i 1 Pi / ^ Pgi\ v^ 1 p , ^ 



P 



(5) 



where e = m /m^ is the mixing mass ratio. The isentropic law furnishes 



Pa(l + /3ho) /^e 



ij (hi-h) 



/^gl 



(6) 



Therefore, by means of Eqs. (4), Eq. (5) becomes 



(7) 





Thus, 



1 + /^n - /^h 



^. 



^H V2 1 p„ 



/^i " Pa(l + /5hi) 2 ^ ^ Pgi 



(7-) 



which gives 



^^^^^I'^-^vr^^^''-''-'^'' 



Now let us define the mixing volume ratio k: 



1/2 



(8) 



(9) 



1114 



