Experimental characterization of the aeroacoustic behavior of a low speed wind tunnel

R. Camussi, G. Gui, D. Barbagallo, D. Prischich

Research output: Contribution to conferencePaper

Abstract

The objective of the present work is the individuation, by means of experimental measurements, of the signatures of different noise sources on the aero-acoustic behavior of a low speed closed-circuit wind tunnel. The study is conducted by anemometric, microphonic and accelerometric measurements. In some cases measurements were conducted simultaneously, placing the probes in several locations along the wind tunnel and for different mean velocities. Data are processed by standard Fourier decompositions and using time-frequency tools for the analysis of transient regimes. The microphonic and accelerometric measurements permitted to select velocity ranges and tunnel components associated to the largest noise emissions and correlated to structural vibrations. The hot wire measurements evidenced that eddies detachement from the comer vanes induces structural excitations with consequent noise emission and weak degradation of the test section flow quality. © 2000 The American Institue of Aeronautics and Astronautics Inc.
Original languageEnglish
Publication statusPublished - 2000
Externally publishedYes
Event6th Aeroacoustics Conference and Exhibit, 2000 - , United States
Duration: 1 Jan 2000 → …

Conference

Conference6th Aeroacoustics Conference and Exhibit, 2000
CountryUnited States
Period1/1/00 → …

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Acoustics and Ultrasonics

Cite this

Camussi, R., Gui, G., Barbagallo, D., & Prischich, D. (2000). Experimental characterization of the aeroacoustic behavior of a low speed wind tunnel. Paper presented at 6th Aeroacoustics Conference and Exhibit, 2000, United States.