Fluid Dynamic and Acoustic Experiments on Turbomachine Rotors Subject to Variable Flow Conditions

Abstract

The primary objective of this research is to obtain a better understanding of how inflow nonuniformities interact with rotor blades, thereby producing rotor vibrations and the radiation of unwanted noise. Carefully controlled experiments will be conducted in low speed wind tunnels using an advanced rotor-dynamometer system. The fluid mechanical characteristics of the inflow will be documented and related to performance and blade radiated sound. The blade response, as characterized by its thrust, torque, surface pressure distribution and radiated sound, will be measured for the cases of both steady and unsteady inflows of variable turbulence intensity and scale.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1990
Accession Number
ADA220298

Entities

People

  • P. F. Dunn
  • T. J. Mueller

Organizations

  • University of Notre Dame

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Absorption
  • Acoustic Measurement
  • Acquisition
  • Anechoic Chambers
  • Basic Programming Language
  • Data Acquisition
  • Flow Visualization
  • Fluid Dynamics
  • Measurement
  • Mechanical Engineering
  • Pressure Distribution
  • Pressure Measurement
  • Propeller Blades
  • Propeller Shafts
  • Propellers
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering