Hybrid Anechoic Wind Tunnel Technology Workshop

The workshop is dedicated to hybrid anechoic wind tunnels, which are wind tunnels that use tensioned fabric (often Kevlar) to contain the test flow and separated it from surrounding anechoic chambers. The goals of the workshop are to facilitate the exchange of technical information on the development and operation of current and planned facilities, to identify new opportunities and technologies of relevance, to discuss gaps in current understanding, and to build a consensus for best practices and standard test cases.

Contact: William J. Devenport (Virginia Tech), devenport@vt.edu

16:00 – Session #1

  • Introduction (2 minutes) – Devenport (VT)
  • Facilities, development and characterization (10 minutes each):
    • Christian Bak, Andreas Fischer and Oliver Ackermann, DTU, “Design and validation of the aeroacoustic setup of the Poul la Cour Tunnel”
    • Hiroki Ura and Kazu Yamamoto, JAXA, “JAXA’s aerodynamic and acoustic correction Methods for a Kevlar wall test section”
    • Con Doolan and Alex Skvortsov, UNSW & DSTG, “Australian Aeroacoustic Measurements using a Kevlar Wall System”
    • Mate Szoke and William Devenport, Virginia Tech, “Acoustic impulse calibration of the VT Stability Tunnel Kevlar Test Section”
  • Applications (10 minutes each):
    • Mahdi Azarpeyvand, U. Bristol, “Airfoil near-field comparison for a test section with and without Kevlar wall”
    • Daniele Ragni and Salid Luesutthiviboon, TU Delft, “Turbulent boundary-layer trailing-edge noise measurements in closed test-sections with hybrid Kevlar and melamine installations”
    • Lou Cattafesta, Florida State, “Comparison of high-lift measurements made in Kevlar and hardwall test sections”
    • Hao Guo, Beihang U., “Aeroacoustic measurements of high-lift devices in D5 wind tunnel”

17:30 – Session #2

Open discussion potentially including:

  1. Long term themes for the workshop
  2. Collaboration on developing aeroacoustic data sets
  3. Common calibration procedures
  4. Scaling issues and facility modeling with computational and analytical methods.