Skip to Navigation
Auburn University Homepage
A-Z Index | Map | People Finder
Auburn University Logo
Electronic Theses and Dissertations
Skip to Main Content
Main Navigation 
  • AUETD Home
  • Graduate School
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
  •   AUETD Home
  • View Item
  •   AUETD Home
  • View Item

Investigation of Active Control of Aircraft Wing Tip Vortices and Wake Turbulence

View/Open
thesisfinal.pdf (5.490Mb)
Extracted text (164.9Kb)
Date
2011-08-17
Author
Gupta, Manjul
Type of Degree
thesis
Department
Aerospace Engineering
Metadata
Show full item record
Abstract
The present work was focused on study and application of active flow control methods to alleviate the wake turbulence problem in commercial aircraft. Sinusoidal perturbations were introduced into the tip vortex generated off one of the wings in a two wing system. Various forcing frequencies and oscillation amplitudes were investigated in a towing tank facility. Measurement techniques included invasive and non-invasive methodologies such as flow visualization, hot film anemometry and particle image velocimetry (PIV). Tilting of the plane of the vortices under forcing conditions was observed. The initiation of long-wave Crow instability was observed. This was also confirmed by flow visualization results. For 20Hz forcing frequency, elliptical deformation of the core for both the vortices was observed. This was an indication of short wave Elliptic instability. When perturbed at a particular frequency and amplitude, the overall system showed earlier onset of instabilities.
Files
Name:
thesisfinal.pdf  
Size:
5.490Mb
Name:
thesisfinal.pdf.txt  
Size:
164.9Kb
URI
http://hdl.handle.net/10415/2796

Browse

All of AUETDBy Issue DateAuthor / AdvisorTitlesDepartments

My Account

Login

Auburn University Libraries | 231 Mell Street | Auburn, Alabama 36849 | (334) 844-4500 or (800) 446-0387 |

 

Auburn University |Auburn, Alabama 36849 |(334) 844-4000 |

Website Feedback |Privacy |Copyright ©