A compressible one dimensional finite element differential analysis is presented which accounts for area changes, rotor lumped blade forces, turbulent wall friction, and heat input. The analysis permits integration through the rotors. Good agreement with test data is obtained. The analysis indicates that appreciable heating of the through flow occurs. The heat input is due to viscous dissipation in the airfoils. This heat input causes thermal chocking in the second stage rotor fan. An incompressible two dimensional finite element analysis is also presented which also permits integration through the rotors. The flow outside the rotors is treated as potential flow and the flow inside the rotors is treated as rotational flow. Good agreement with low speed test data is obtained. Maximum velocities of twice the rotor tip speed are predicated inside the outlet rotor.
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