isentrop

Isentropic Flow Eguations

Glenn

Research

Center

Mach = M speed of sound = a gas constant = R specific heat ratio = Y t subscript denotes total conditions * superscript denotes sonie conditions

(D M= 1

(2)    a = Jy£_ = ,/yRT

(3)    = Constant =

r^Y    r_t'

(6) -^-(1 (7) i-(l

velocity = v pressuresp temperaturę = T density = r area sA dynamie pressure=q - v

Y - 1

Y - 1

M²)^v

M²)

y-i

i

(4)

Pt    * T, *

(5) q = i-rv² = XpM^?

O)

e) T7= (1

A _/Y+    +

A'"' 2 '    ---

Y - 1

M²)^v

T*1 2(V - 1)

M