Hydrofoil Turbulent Boundary Layer Separation at High Reynolds Numbers

One of the main hydroacoustic noise sources from fully submerged lifting surfaces is the unsteady separated turbulent flow near the surface's trailing edge that produces pressure fluctuations on the surface and unsteady oscillatory flow in the near wake. However, the turbulent flow characteristics near boundary layer separation are largely undocumented at the high Reynolds numbers typical of many hydrodynamic applications. This paper describes results from the first phase of an experimental effort to identify and measure the dominant flow features near the trailing edge of a hydrofoil at chord-based Reynolds numbers approaching 10 to the 8th power. The experiments are conducted at the US Navy's Large Cavitation Channel with a two-dimensional test-section-spanning hydrofoil (2.1 m chord, 3.0 m span) at flow speeds from 0.5 to 18 m/s. The foil section is a modified NACA 16 with a flat pressure side and an anti-singing trailing edge. The results presented here cover the first phase of experiments and emphasize Laser Doppler Velocimeter (LDV)-measured mean flow velocities and turbulence statistics from the separating boundary layer flows near the hydrofoil's trailing edge at Reynolds numbers from 6 to 60 million.

• Record URL:
  http://www.nap.edu/catalog.php?record_id=10189
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309254670
• Corporate Authors:

  Office of Naval Research

  Department of the Navy, 800 North Quincy Street
  Arlington, VA  United States  22217

  Bassin d'Essais des Carenes

  Chaussee du Vexin
  Val-de-Reuil,   France  27100

  National Research Council

  Naval Studies Board, 500 5th Street, NW
  Washington, DC  United States  20001
• Authors:
  • Bourgoyne, D
  • Ceccico, S
  • Dowling, D
  • Brewer, W
  • Jessup, S
  • Park, J H
  • Pankajakshan, R
• Discussers:
  • Cordier, S
  • Di Felice, F
• Conference:
  • Twenty-Third Symposium on Naval Hydrodynamics
  • Location: Val de Reuil , France
  • Date: 2000-9-17 to 2000-9-22
• Publication Date: 2001

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 314-329
• Monograph Title: Twenty-Third Symposium on Naval Hydrodynamics

Subject/Index Terms

• TRT Terms: Acoustics; Hydrodynamics; Hydrofoils; Reynolds number; Turbulent boundary layer
• Candidate Terms: Turbulent flow
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 01369753
• Record Type: Publication
• ISBN: 9780309254670
• Files: TRIS
• Created Date: May 11 2012 9:05AM