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Cover image for Predicted and measured modal sound power levels for a fan ingesting distorted inflow

Predicted and measured modal sound power levels for a fan ingesting distorted inflow

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Cover image for Design and performance calculations of a propeller for very high altitude flight

Design and performance calculations of a propeller for very high altitude flight

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Joyner - Microforms B300 NAS 1.15:206637 ✔ Available
Cover image for An experimental study of fan inflow distortion tone noise

An experimental study of fan inflow distortion tone noise

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Cover image for Quiet, efficient fans for spaceflight

Quiet, efficient fans for spaceflight

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Cover image for Predicting the inflow distortion tone noise of the NASA Glenn Advanced Noise Control Fan with a combined quadrupole-dipole model

Predicting the inflow distortion tone noise of the NASA Glenn Advanced Noise Control Fan with a combined quadrupole-dipole model

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Cover image for Tone noise predictions for a spacecraft cabin ventilation fan ingesting distorted inflow and the challenges of validation

Tone noise predictions for a spacecraft cabin ventilation fan ingesting distorted inflow and the challenges of validation

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Cover image for Acoustic measurements of an uninstalled spacecraft cabin ventilation fan prototype

Acoustic measurements of an uninstalled spacecraft cabin ventilation fan prototype

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Cover image for Evaluation of the Tone Fan Noise Design/Prediction System (TFaNS) at the NASA Glenn Research Center

Evaluation of the Tone Fan Noise Design/Prediction System (TFaNS) at the NASA Glenn Research Center

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Cover image for Validation of the predicted circumferential and radial mode sound power levels in the inlet and exhaust ducts of a fan ingesting distorted inflow

Validation of the predicted circumferential and radial mode sound power levels in the inlet and exhaust ducts of a fan ingesting distorted inflow

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Cover image for Evaluation of the Tone Fan Noise Design/Prediction System (TFaNS) at the NASA Glenn Research Center

Evaluation of the Tone Fan Noise Design/Prediction System (TFaNS) at the NASA Glenn Research Center

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Joyner - Microforms B300 NAS 1.15:209655 ✔ Available