mflchk

Compressible Mass Flow Ratę

Glenn

Research

Center

R = Gas Constant y =Specitic Fleat Ratio

7*1

2(7-1)

A=Area r s Density V=Velocity M = Mach T= Temperaturę p=Pressure t denotes total conditions

Mass Flow Ratę:

m = r V A

For an ideał compressible gas:

m

-A Pt

Sr*

At the throat, the area is a minimum and M—i.O.

For M = 1.0 m = .532 AjJt_ |_bs/sec A in ft* p in pst, (Air)    -/Tt    ^{T in Rankine}