Conference Proceedings

Simultaneous velocity and density measurements using PIV and PLIF in turbulent axisymmetric buoyant plumes

Himanshu Mishra, J Philip

Proceedings of the 21st Australasian Fluid Mechanics Conference, AFMC 2018 | Australasian Fluid Mechanics Society | Published : 2018

Abstract

From violent volcanic eruptions to the rising clouds, turbulent plumes are omnipresent in nature at wide range of scales. The mixing and growth dynamics of a turbulent plume is important in fundamental understanding of turbulence as well as in modelling this complex fluid mechanics phenomenon. Closure of turbulence equation requires knowledge of fluxes, such as, (w′b′) (the averaged product of fluctuating vertical velocity and buoyancy). This necessitates simultaneous field measurements of velocity and density of the mixing fluids with high spatial and temporal resolution. Here, we present a methodology for obtaining simultaneous time resolved measurement of velocity and density in an axisym..

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University of Melbourne Researchers