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Flow, Turbulence and Combustion

, Volume 95, Issue 2–3, pp 193–209 | Cite as

Advances of PIV and 4D-PTV ”Shake-The-Box” for Turbulent Flow Analysis –the Flow over Periodic Hills

  • A. SchröderEmail author
  • D. Schanz
  • D. Michaelis
  • C. Cierpka
  • S. Scharnowski
  • C. J. Kähler
Article

Abstract

In order to increase the prediction capabilities of advanced numerical methods for turbulent wall bounded flows at relatively high Reynolds numbers accurate experimental validation data-sets including the full Reynolds stress tensor at high spatial resolution are strongly required. In particular the influence of pressure gradients and wall curvatures up to flow separation and the development of related shear layers need to be investigated experimentally in order to provide reliable data for the validation process but also to prove scaling laws, sub-grid- and turbulence-models. Furthermore, for advanced unsteady flow simulation methods (LES, DES, DNS etc.) the integration times and domains which are necessary for resolving flow features with very low spatial or temporal frequencies are often not sufficient for a fully converged solution. Consequently, the used experimental methods have to be able to resolve a large range of spatial and temporal scales for serving the code validation process. In a joint experiment within the European FP7 project AFDAR several advanced particle image velocimetry (PIV) and particle tracking velocimetry (PTV) methods have been successively applied to measure the flow within the ERCOFTAC test case Nr. 81 ”periodic hill” (PH) water tunnel at TU Munich delivering field data with high spatial and temporal resolution.

Keywords

Turbulent channel flow Periodic hill PIV PTV Shake-The-Box 

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Department of Experimental Methods, German Aerospace Center (DLR)Institute of Aerodynamics and Flow TechnologyGöttingenGermany
  2. 2.LaVision GmbHGöttingenGermany
  3. 3.Institute of Fluid Mechanics and AerodynamicsBundeswehr University MunichNeubibergGermany

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