Electronic Thesis and Dissertation Repository

Degree

Master of Engineering Science

Program

Mechanical and Materials Engineering

Supervisor

Dr. Kamran Siddiqui

2nd Supervisor

Co-Supervisor Dr. Karava

Joint Supervisor

Abstract

An experimental investigation of the flow dynamics in a transpired air collector channel with a corrugated surface is presented. Particle image velocimetry (PIV) was used to obtain twodimensional velocity fields to compare the effects of surface heating on the flow for five flow rates. Mean velocity and turbulent property profiles are presented and compared. Proper orthogonal decomposition and wavenumber spectrum analyses were also conducted to investigate the underlying interactions between the turbulent structures that comprise the complex flow behaviour observed in corrugated flows. Results show that the corrugated waveform was the primary source of turbulence at all flow rates and heating conditions, which produced enhanced turbulent properties in its vicinity. However, under an applied heat flux, the flow at the lowest flow rate the flow was primarily buoyancy driven, where buoyancy induced stabilities and heating effects were strongest.


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