Blade-element performance of a tandem-bladed inducer tested in water
Richard F. Soltis, Donald C. Urasek, Max Joseph Miller, Lewis Research Center, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1969 - Technology & Engineering - 35 pages
Blade element performance of tandem bladed inducer tested in water.
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AHid average flow coefficient axial velocity blade elements blade loading blade mean blade passage blade sections blade span blade surface boundary blade tip region blade-element efficiencies blade-element head rise blade-element parameters Blade-element performance boundary layer separation camber D-factor decrease design flow design value diffusion factor effects of cavitation energy addition figure 12 flow angle flow coefficient cp flow conditions flow parameters flow range flow rate front and rear front blade head loss height from hub hub region ideal head-rise coefficient incidence angle indicated inducer inlet inducer was tested inlet flow coefficient loss coefficient loss level Mass-averaged measured Midspan NASA NASA TN outlet flow coefficient overall performance percent plots positive suction head probe radial distributions radius rear blade Richard F rotation tandem rotative speed secondary flow effects slot geometry surface boundary layer tandem inducer tandem-blade elements tandem-bladed inducer tested in water turning angle A/3 Venturi meter