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Exploratory Data Analysis of The KelvinHelmholtz instability in Jets

Tirunagari, S (2015) Exploratory Data Analysis of The KelvinHelmholtz instability in Jets

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Abstract

The KelvinHelmholtz (KH) instability is a fundamental wave instability that is frequently observed in all kinds of shear layer (jets, wakes, atmospheric air currents etc). The study of KH-instability, coherent flow structures has a major impact in understanding the fundamentals of fluid dynamics. Therefore there is a need for methods that can identify and analyse these structures. In this Final assignment, we use machine-learning methods such as Proper Orthogonal Decomposition (POD) and Dynamic Mode Decomposition (DMD) to analyse the coherent flow structures. We used a 2D co-axial jet as our data, with Reynolds number corresponding to Re: 10,000. Results for POD modes and DMD modes are discussed and compared.

Item Type: Article
Authors :
NameEmailORCID
Tirunagari, Ssantosh.tirunagari@surrey.ac.ukUNSPECIFIED
Date : 21 March 2015
Uncontrolled Keywords : cs.CE, cs.CE, physics.flu-dyn
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:47
Last Modified : 17 May 2017 15:13
URI: http://epubs.surrey.ac.uk/id/eprint/840358

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