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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-483-0

ISBN Online: 978-1-56700-482-3

4th Thermal and Fluids Engineering Conference
April, 14–17, 2019 , Las Vegas, NV, USA

Experimental Study of Multiphase Jet Flow by Particle Imaging Velocimetry Measurement

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DOI: 10.1615/TFEC2019.mph.028351

Аннотация

Multiphase jet flow is commonly encountered in many engineering applications. In the present study, a laboratory scale experimental setup was built to measure the turbulent flow characteristics by using Particle Imaging Velocimetry (PIV) to evaluate the influence of the gas phase on the jet hydrodynamics, especially the instantaneous velocity and turbulent kinetic energy at the near-to-orifice region. The results indicate that the gas phase is important in the formation of the droplet at the initial stage and the churn jet may results in more entrainment from the ambient environment compared with the bubbly jet. The PIV measurement is a robust experimental approach to study the turbulent flow characteristics and hydrodynamics of the multiphase jet when gas phase is present.