Prediction and Measurement of Turbulent Boundary Layer Wall-Pressure Fluctuations on the Surface of a Single Panel at Low Mach Numbers

Authors

  • Jared Van Blitterswyk Carleton University
  • Joana Rocha Carleton University

Abstract

Wall-pressure fluctuations induced by a turbulent boundary layer, acquired in a wind tunnel environment, are analyzed for flow speeds between 0.05 and 0.12 Mach. Three microphone configurations are considered: flush mounted with a standard grid cap, flush mounted with a pinhole cap, and a recessed approach beneath a Kevlar sheet. A selection of existing single-point frequency spectrum models, for turbulent boundary layer wall-pressure fluctuations, are reviewed and compared to measurements from the Carleton University wind tunnel facility to determine the most appropriate model for subsonic flows. The measured and predicted frequency spectra are compared in dimensional and non-dimensional forms to investigate dependencies on Mach number and turbulent boundary layer thickness.

 

Author Biographies

Jared Van Blitterswyk, Carleton University

M.A.Sc Candidate, Department of Mechanical and Aerospace Engineering

Joana Rocha, Carleton University

Assistant Professor, Department of Mechanical and Aerospace Engineering

Additional Files

Published

2014-08-18

How to Cite

1.
Van Blitterswyk J, Rocha J. Prediction and Measurement of Turbulent Boundary Layer Wall-Pressure Fluctuations on the Surface of a Single Panel at Low Mach Numbers. Canadian Acoustics [Internet]. 2014 Aug. 18 [cited 2024 Nov. 8];42(3). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2723

Issue

Vol. 42 No. 3 (2014)

Section

Proceedings of the Acoustics Week in Canada

License

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.