Advertisement

Streamwise Auto-Correlation Analysis in Turbulent Pipe Flow Using Particle Image Velocimetry at High Reynolds Numbers

  • Emir ÖngünerEmail author
  • El-Sayed Zanoun
  • Christoph Egbers
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 196)

Abstract

This preliminary study focuses on determining the lengths of turbulent pipe flow structures at \(\textit{Re}_{b} \approx 60,000\) and 140, 000 using auto-correlation analysis in streamwise direction considering velocity fluctuations, where \(\textit{Re}_{b}\) is the Re-number based on bulk velocity. These structures are usually represented in terms of wavelengths \(\lambda \) or wavenumbers k. The current investigations on such turbulent structures including both large-scale motions (LSM) and very large-scale motions (VLSM) showed that the streamwise extension of these structures is highly dependent on the Reynolds number. Hence, the Cottbus large pipe (CoLaPipe) as a high Reynolds number test facility is being used to understand the physical processes and dynamics of such structures. These turbulence structures have been investigated using particle image velocimetry (PIV) to validate and compare earlier results obtained utilizing hot-wire anemometry (HWA).

Notes

Acknowledgements

This work was supported by LaVision GmbH. We gratefully acknowledge many useful discussions with Mirko Dittmar and Peter Meyer. The authors are supported by the DFG-German Research Foundation as a part of the FOR1182 and SPP1881 (Grant No. EG100/24-1) project. CoLaPipe facility is used as a part of the EuHIT (European High-Performance Infrastructures in Turbulence) program.

References

  1. 1.
    M. Guala, S.E. Hommena, R.J. Adrian, Large-scale and very-large-scale motions in turbulent pipe flow. J. Fluid Mech. 554, 521–542 (2006)CrossRefzbMATHGoogle Scholar
  2. 2.
    K.C. Kim, R.J. Adrian, Very large-scale motion in the outer layer. Phys. Fluids 11, 417–422 (1999)MathSciNetCrossRefzbMATHGoogle Scholar
  3. 3.
    F. König, E.-S. Zanoun, E. Öngüner, C. Egbers, The CoLaPipe—the new Cottbus large pipe test facility at Brandenburg University of Technology Cottbus-Senftenberg. Rev. Sci. Instrum. 85, 075115 (2014)CrossRefGoogle Scholar
  4. 4.
    E. Öngüner, F. König, E.S. Zanoun, C. Egbers, Experimentelle Untersuchung der turbulenten Rohrstrukturen bei hohen Reynolds-Zahlen (2014) “Lasermethoden in der Strmungsmesstechnik”, 9–11 Sept 2014, Karlsruhe, Hrsg.: Ruck, B., Gromke, C., Klausmann, K., Leder, A., Dopheide, D. ISBN 978-3-9816764-0-2Google Scholar
  5. 5.
    E. Öngüner, M. Dittmar, P. Meyer, C. Egbers, PIV-Messungen in horizontaler Rohrstrmung bei hohen Reynolds-Zahlen (2015) “Lasermethoden in der Strmungsmesstechnik”, 8–10 Sept 2015, Dresden, Hrsg.: Czarske, J., Büttner, L., Fischer, A., Ruck, B., Leder, A., Dopheide, D. ISBN 978-3-9816764-1-9Google Scholar
  6. 6.
    M. Vallikivi, Wall-bounded turbulence at high Reynolds numbers. PhD Thesis, Princeton University (2014)Google Scholar
  7. 7.
    M. Vallikivi, B. Ganapathisubramani, A.J. Smits, Spectral scaling in boundary layers and pipes at very high Reynolds numbers. J. Fluid Mech. 771, 303–326 (2015)CrossRefGoogle Scholar
  8. 8.
    E.-S. Zanoun, E. Öngüner, C. Egbers, Conventional measuring probes in the wall layer of turbulent subsonic ducted flows. Thermophys. Aeromech. 23–3, 329–342 (2016)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Emir Öngüner
    • 1
    Email author
  • El-Sayed Zanoun
    • 1
    • 2
  • Christoph Egbers
    • 1
  1. 1.Department of Aerodynamics and Fluid MechanicsBrandenburg University of TechnologyCottbusGermany
  2. 2.Faculty of EngineeringBenha UniversityBenhaEgypt

Personalised recommendations