Investigation of Large Scale Motions in Zero and Adverse Pressure Gradient Turbulent Boundary Layers Using High-Spatial-Resolution PIV

Authors

  • Daniel Jovic Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) Department of Mechanical and Aerospace Engineering, Monash University, Australia
  • Muhammad Shehzad Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) Department of Mechanical and Aerospace Engineering, Monash University, Australia
  • Bihai Sun Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) Department of Mechanical and Aerospace Engineering, Monash University, Australia
  • Christophe Cuvier Universite Lille Nord de France, Laboratoire de Mecanique des fluides de Lille Kampe de Feriet, Lille, France
  • Christian Willert German Aerospace Center (DLR), Institute of Propulsion Technology, Koln, Germany
  • Yasar Ostovan Universite Lille Nord de France, Laboratoire de Mecanique des fluides de Lille Kampe de Feriet, Lille, France
  • Jean-Marc Foucaut Universite Lille Nord de France, Laboratoire de Mecanique des fluides de Lille Kampe de Feriet, Lille, France
  • Callum Atkinson Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) Department of Mechanical and Aerospace Engineering, Monash University, Australia
  • Julio Soria Laboratory for Turbulence Research in Aerospace & Combustion (LTRAC) Department of Mechanical and Aerospace Engineering, Monash University, Australia

DOI:

https://doi.org/10.18409/ispiv.v1i1.170

Abstract

Particle image velocimetry (PIV) has been used to capture the high-spatial-resolution (HSR) two-component, two-dimensional (2C-2D) velocity fields of a zero-pressure-gradient (ZPG) turbulent boundary layer (TBL) and of an adverse-pressure-gradient (APG) TBL. Proper Orthogonal Decomposition (POD) is performed on the measured velocity fields to characterize the velocity fields as large or small scale motions (LSMs or SSMs), with further characterisation of the LSMs into high and low momentum events. This paper reports the findings of the PIV experiment and the subsequent analysis of the high Reynolds number ZPG and APG TBLs

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Published

2021-08-01

Issue

Vol. 1 No. 1 (2021)

Section

Boundary Layers

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