Design and experimental evaluation of compact radial-inflow turbinesThe application of a multistage 3D Euler solver to the aerodynamic design of two compact radial-inflow turbines is presented, along with experimental results evaluating and validating the designs. The objectives of the program were to design, fabricate, and rig test compact radial-inflow turbines with equal or better efficiency relative to conventional designs, while having 40 percent less rotor length than current traditionally-sized radial turbines. The approach to achieving these objectives was to apply a calibrated 3D multistage Euler code to accurately predict and control the high rotor flow passage velocities and high aerodynamic loadings resulting from the reduction in rotor length. A comparison of the advanced compact designs to current state-of-the-art configurations is presented.
Document ID
19910061165
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fredmonski, A. J. (Pratt and Whitney Aircraft Group West Palm Beach, FL, United States)
Huber, F. W. (Pratt and Whitney Group West Palm Beach, FL, United States)
Roelke, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Simonyi, S. (Sverdrup Technology, Inc. Brook Park, OH, United States)