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Particle Mass Loading Effect on a Two‐Phase Turbulent Downward Jet Flow
Author(s) -
Jou BiingHwang,
Sheen HornJiunn,
Lee YuhTzyh
Publication year - 1993
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.19930100405
Subject(s) - turbulence , jet (fluid) , mechanics , reynolds number , nozzle , anemometer , particle (ecology) , two phase flow , mass flow meter , flow (mathematics) , mass flow , phase (matter) , physics , amplitude , pipe flow , materials science , optics , flow measurement , thermodynamics , oceanography , quantum mechanics , geology
The particle mass loading effect on the flow structure of a two‐phase turbulent jet flow was studied. A particle mass loading ratio ranging from 0 to 3.6 was used as the control parameter. The polystyrene solid particles used had nominal diameters of 210 and 780 μm. The flow Reynolds number, which was based on the pipe nozzle diameter and the fluid‐phase centerline mean velocity, was 2 × 10 4 in the current test. A two‐color laser Doppler anemometer (LDA), combined with the amplitude discrimination method and the velocity filter method, was employed to measure the mean velocity distributions for the particle and fluid phases, and the turbulent intensities and Reynolds stresses of the flow. The two‐phase jet flow field was measured from the initial pipe exit to 90 D downstream. Another one‐component HeNe laser LDA system was also applied to obtain the energy spectra and temporal correlations of the two‐phase jet flow.