Skip to main content
SpringerLink
Log in

Passive Multiscale Flow Control by Fractal Grids

  • Conference paper
IUTAM Symposium on Flow Control and MEMS

Part of the book series: IUTAM Bookseries ((IUTAMBOOK,volume 7))

  • 1631 Accesses

Abstract

Wind tunnel grid-generated turbulence based on a fractal square motif has been studied via hot-wire anemometry, at several free-stream velocities. The aim of the exercise was to see whether a fractal motif could enable multiscale flow control such that the ‘objective functions’ are the nature of the turbulence decay and its non-dimensional turbulence energy dissipation rate, C ɛ. The outcome is that such a grid architecture does provide a unique homogeneous isotropic decaying turbulence field where the decay is exponential and the non-dimensional turbulence energy dissipation rate field evolves inversely with the Taylor-Reynolds number.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution
Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Similar content being viewed by others

References

  1. D. Hurst and J.C. Vassilicos. Scalings and decay of fractal generated turbulence. Phys. Fluids 19(3), 2007, 035103.

    Article  Google Scholar 

  2. B. Mazzi and J.C. Vassilicos. Fractal generated turbulence. J. Fluid Mech. 502, 2004, 65–87.

    Article  MATH  MathSciNet  Google Scholar 

  3. D. Queiros-Conde and J.C. Vassilicos. Turbulent wakes of 3D fractal grids. In J.C. Vassilicos (Ed.), Intermittency in Turbulent Flows and Other Dynamical Systems, Cambridge Press, 2001, pp. 136–167.

    Google Scholar 

  4. L. Rossi, J.C. Vassilicos, and Y. Hardalupas. Electromagnetically controlled multi-scale flow. J. Fluid Mech. 558, 2006, 207–242.

    Article  MATH  Google Scholar 

  5. A. Staicu, B. Mazzi, J.C. Vassilicos, and W. van de Water. Turbulent wakes of fractal objects. Phys. Rev. E 67(6), 2003.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Turbulence, Mixing and Flow Control Group, Department of Aeronautics, Imperial College London, London, SW7 2AZ, UK

    R. E. E. Seoud & J. C. Vassilicos

Authors
  1. R. E. E. Seoud
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. C. Vassilicos
    View author publications

    You can also search for this author in PubMed Google Scholar

Editor information

Editors and Affiliations

  1. Department of Aeronautics, Imperial College, London, England

    J. F. Morrison , D. M. Birch  & P. Lavoie ,  & 

Rights and permissions

Reprints and permissions

Copyright information

© 2008 Springer

About this paper

Cite this paper

Seoud, R.E.E., Vassilicos, J.C. (2008). Passive Multiscale Flow Control by Fractal Grids. In: Morrison, J.F., Birch, D.M., Lavoie, P. (eds) IUTAM Symposium on Flow Control and MEMS. IUTAM Bookseries, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6858-4_53

Download citation

  • DOI: https://doi.org/10.1007/978-1-4020-6858-4_53

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-6857-7

  • Online ISBN: 978-1-4020-6858-4

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics

Search

Navigation