Experimental investigation of turbulence in canonical wall bounded flows: Pipe flow and Taylor-Couette flow

Melika Gül

Research output: ThesisDissertation (TU Delft)

40 Downloads (Pure)

Abstract

This thesis aims to contribute to the physical understanding of turbulence in canonical flows. For that purpose, experiments are conducted in a statistically steady turbulent pipe flow, ramp-type accelerating/decelerating turbulent pipe flow and turbulent Taylor-Couette flow. For the first two flows, time-resolved data is acquired in the cross section of the pipe with stereoscopic PIV. The databases spanning over a friction Reynolds number range of Re⌧ = 340−1259 are utilised to study coherent motions, in particular the large-scale motions and the internal shear layers bounding them. For the turbulent Taylor-Couette flow study, in addition to torque measurements, high resolution stereoscopic-PIV measurements are performed in the radial-axial planes to investigate the hysteresis phenomenon in the system.
Original languageEnglish
Awarding Institution
  • Delft University of Technology
Supervisors/Advisors
  • Westerweel, J., Supervisor
  • Elsinga, G.E., Supervisor
Award date28 Oct 2019
Print ISBNs978-94-6366-211-6
DOIs
Publication statusPublished - 2019

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