Internal Wave Breaking in Stratified Flows Past Obstacles

  • Sergey N. Yakovenko
  • T. Glyn Thomas
  • Ian P. Castro
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 13)

Abstract

Turbulent patches occurring in environmental flows can arise from breaking internal waves generated topographically. The convective overturning of waves leads to shear instability and then to turbulence which develops into the fully mixed region in the place of initial wave breaking. The objective of the present studies is to explore the steady internal wave breaking observed in stably stratified flows past obstacles [1]. We use a numerical approach based on well-resolved Navier–Stokes DNS/LES methods using parallel multi-block architecture [2] with the Boussinesq approximation and sponge layer treatment to avoid wave reflection from upstream/downstream boundaries.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Castro IP, Snyder WH (1993) J Fluid Mech 255:195–211CrossRefGoogle Scholar
  2. 2.
    Thomas TG, Williams JJR (1997) J Wind Eng Ind Aero 67&68:155–167CrossRefGoogle Scholar
  3. 3.
    Kasagi N, Nishimura M (1997) Int J Heat Fluid Flow 18:88–99CrossRefGoogle Scholar
  4. 4.
    Castro IP, Snyder WH, Marsh GL (1983) J Fluid Mech 135:261–282CrossRefGoogle Scholar
  5. 5.
    Gheusi F, Stein J, Eiff OF (2000) J Fluid Mech 410:67–99MATHCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Sergey N. Yakovenko
    • 1
  • T. Glyn Thomas
    • 1
  • Ian P. Castro
    • 1
  1. 1.Aerodynamics and Flight Mechanics Research GroupSchool of Engineering Sciences, University of Southampton, HighfieldSouthamptonUK

Personalised recommendations