Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/16569
Title: Some Experimental Studies on Vortex Ring Formation and Interaction
Authors: DEEPAK ADHIKARI
Keywords: circular vortex ring, elliptic vortex ring, vortex stretching, cut-and-reconnection
Issue Date: 11-Aug-2009
Source: DEEPAK ADHIKARI (2009-08-11). Some Experimental Studies on Vortex Ring Formation and Interaction. ScholarBank@NUS Repository.
Abstract: This thesis aims to address some of the unresolved issues relating to the characteristics of vortex rings. The study is divided into three parts, namely, 1. circular vortex rings, 2. elliptic vortex rings, and 3. interaction of a vortex ring with a circular cylinder. In the case of a circular vortex ring, the relationship between the generating conditions and characteristics of the vortex ring are discussed. This includes the measurement of vorticity profile within the core of the vortex ring. For elliptic vortex rings, the trajectories of the vortex rings and the associated flow fields obtained using DPIV technique are presented. The issue on the existence of vortex stretching during the oscillatory motion of elliptic vortex ring is also examined. For the case of vortex ring/circular cylinder interaction, investigations were conducted with vortex cores and cylinders of various sizes, and the results are analysed with reference to the cut-and-reconnection mechanism.
URI: http://scholarbank.nus.edu.sg/handle/10635/16569
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
AdhikariD.pdf26.02 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

714
checked on Dec 11, 2017

Download(s)

467
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.