Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2006, Volume18

Issue 1

114 pages

DOI: 10.1615/MultScienTechn.v18.i1

Issue price - $150.00

T. Kouda
Graduate student, Division of Mechanical and System Eng., Kyoto Institute of Technology, Kyoto, Japan

Yoshimichi Hagiwara
Department of Mechanical and System Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan

We have carried out measurements of the flow field of swirling water flow with immiscible oil droplets in a horizontal pipe. The swirl is obtained with a stationary vane inside the pipe. The flow is visualized with tracer particles and the images of visualized flow are captured from the side and downstream-end of the pipe with a progressive-scan video camera. The velocity field is measured from the captured images with the velocity gradient tensor method. The experimental results show that the low-density droplets have relative motion to the water flow. The axial mean velocity decreases because the droplets injected into the flow have had lower velocity than the local flow velocity. The periodic pulsative wake flow of some droplets causes the increase in the turbulence intensity.

DOI: 10.1615/MultScienTechn.v18.i1.30 Download article, 55-72 pages

Article price - $45.00

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