Advertisement

Direct Numerical Simulation of Jet Actuators for Boundary Layer Control

  • Björn Selent
  • Ulrich Rist
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 112)

Summary

The paper presents a method to perform direct numerical simulations (DNS) of a jet actuator flow inside a turbulent flat plate boundary layer (TBL). A structured finite differencemethod is used for the simulations. The numerical scheme is adapted to account for the large scale differences both in geometric and fluid dynamic aspect. Analytical mesh transformations have been implemented to resolve the jet orifice. Suitable boundary conditions are established to model the jet flow. Numerical stability has been added by implementing a compact filter scheme. The TBL baseflow is generated by mimicing experimental approaches and direct simulation of the laminar-turbulent transition process. Simulations of a jet actuator configuration perturbing the turbulent baseflow have been undertaken and the results are evaluated.

Keywords

Direct Numerical Simulation Turbulent Boundary Layer Spanwise Direction Longitudinal Vortex Boundary Layer Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Johnston, J.P., Nishi, M.: Vortex Generator Jets – a Means for Flow Separation Control. AIAA Journal 28, 989–994 (1990)CrossRefGoogle Scholar
  2. 2.
    Compton, D.A., Johnston, J.P.: Streamwise Vortex Production by Pitched and Skewed Jets in a Turbulent Boundary Layer. AIAA Journal 30, 640–647 (1992)CrossRefGoogle Scholar
  3. 3.
    Godard, G., Foucaut, J.M., Stanislas, M.: Control of a decelerating boundary layer: Parts 1,2,3. Aerospace Science and Technology 10 (2006)Google Scholar
  4. 4.
    Casper, M., Kähler, C.J., Radespiel, R.: Fundamentals of Boundary Layer Control with Vortex Generator Jet Arrays. In: AIAA Flow Control Conference (2008)Google Scholar
  5. 5.
    Lele, S.K.: Compact Finite Difference Schemes with Spectral-like Resolution. J. Comp. Phys. 103, 16–42 (1992)zbMATHCrossRefMathSciNetGoogle Scholar
  6. 6.
    Kloker, M.J.: A robust high-order split-type compact FD scheme for spatial direct numerical simulation of boundary-layer transition. Appl. Sci. Res. 59, 353–377 (1998)zbMATHCrossRefMathSciNetGoogle Scholar
  7. 7.
    Spalart, P.R.: Direct simulation of a turbulent boundary layer up to R θ= 1410. J. Fluid Mech. 187 (1988)Google Scholar
  8. 8.
    Jeong, J., Hussain, F.: On the identification of a vortex. J. Fluid Mech. 285, 69–94 (1995)zbMATHCrossRefMathSciNetGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Björn Selent
    • 1
  • Ulrich Rist
    • 1
  1. 1.Institut für Aero- & GasdynamikUniversität StuttgartStuttgartGermany

Personalised recommendations