Controlled ring vortex injection into a turbulent pipe flow

Title

Controlled ring vortex injection into a turbulent pipe flow

 Author

Sanders, Carsten (TU Delft Aerospace Engineering; TU Delft Mechanical, Maritime and Materials Engineering)

Contributor

Elsinga, G.E. (mentor) ORCID 0000-0001-6717-5284

 Degree granting institution

Delft University of Technology

 Programme

Aerospace Engineering

 Date

2017-11-15

 Abstract

In this thesis a vortex generator is presented, that can generate controlled ring-vortex injections into a pipe flow. The performance of the generator and the coherence of its structures is tested by applying a dye visualisation method. Furthermore, iso-contour plots of the 3D velocity field, obtained from Stereoscopic Particle Image Velocimetry (SPIV) data, reveal that the injection develops into a hairpin- or ring-vortex with hairpin packets.
In future applications, this vortex generator will be used to study the interaction between the controlled ring-vortex structures and the turbulent structures in the pipe, which will act as a model for scale interactions in turbulence.

 Subject

Vortex generators
Stereoscopic
pipe flow
PIV
Ring vortex
Hairpin vortex

 To reference this document use:

http://resolver.tudelft.nl/uuid:8bded4f1-6195-4903-a7ae-b4bffc6fde9b

 Part of collection

Student theses

 Document type

master thesis

 Rights

© 2017 Carsten Sanders
Files
PDF AeroMScReport.pdf 16.22 MB
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