Detailed measured radial distributions of flow parameters for eight rotors with part-span dampers are used to study the effects of dampers on rotor performance and flow parameters at near design operation. All rotors had a blade tip diameter of about 20 in. and operated at a blade tip speed of about 1400en1 ft/sec. Several examples demonstrate that, when the local loss variations in the damper flow region are included in an aerody-namic design or analysis procedure, the computed spanwise distributions of flow parameters compare closely with measured distributions. (Author)
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