Characterizing the Broadband Response of a Rotor to Transient Inflow Phenomena
Abstract
An ambitious experimental program to provide quantitative insight into the mechanics ofturbulence ingestion noise produced by the t"ransient wake of an upstream control surface isdescribed. In particular, the problem of coupling between the control surface aerody"namics andthe aerodynamics and acoustics of the rotor are to be systematically studied. The understandingand data sets generated will directly support parallel analytical and computational work beingproposed in parallel by Prof. Stewart Glegg of Florida Atlantic University and Prof. Meng Wangof the University of Notre Dame. Our overarching goal is to perform the fundamental scientificwork needed for the development and validation of reliable aeroacoustic prediction methods forthis application. Experimental work will be carried out in the Virginia Tech Stability Wind Tunnelusing state of the art phased microphone array and particle image velocimetry systems. The focusof the measurements will be an idealized configuration based on the proven Sevik rotor designedto capture the essential physics without the confounding factors present in most practicalapplications. The proposed work will last 3 years. To"tal cost of the proposed effort is $686,895.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 07, 2017
- Source ID
- N000141712698
Entities
People
- William J. Devenport
Organizations
- Office of Naval Research
- United States Navy
- Virginia Tech