Author ORCID Identifier
Date Available
11-27-2019
Year of Publication
2019
Document Type
Master's Thesis
Degree Name
Master of Science in Mechanical Engineering (MSME)
College
Engineering
Department/School/Program
Mechanical Engineering
Faculty
Dr. Sean C. Bailey
Faculty
Dr. Alexandre Martin
Abstract
Vortices are present in many fluid flows and depending on the context they may be either beneficial or harmful for different systems or processes. Planar particle image velocimetry was used to examine the vortex evolution and its decay under different turbulence intensities and vortex circulation. The vortex decayed faster in the presence of high turbulence intensity. Vortex trajectories were impacted by turbulence intensity and vortex strength. Trajectories with no turbulence intensity had less variation. The vortex wandering amplitude decreased with growth of vortex strength. The vortex decay was confined to the core of the vortex, with the tangential velocity at large radial distances from the vortex center being relatively constant in time. The vortex core radius had a greater rate of growth with the low turbulence intensity and lower angle of attack. The amplitude of fluctuation of the core circulation increased for the higher turbulence intensity and weaker vortex.
Digital Object Identifier (DOI)
https://doi.org/10.13023/etd.2019.432
Recommended Citation
Najarzadegan, Farshid, "Circulation Dependence of the Interaction Between a Wing-Tip Vortex and Turbulence" (2019). Theses and Dissertations--Mechanical Engineering. 145.
https://uknowledge.uky.edu/me_etds/145
