Velocity measurements in a particle laden turbulent free jet

Levy, Y.; Lockwood, F.C.

doi:10.1016/0010-2180(81)90134-6

Cited by 75 publications

(23 citation statements)

References 2 publications

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“…Popper et al (1974) used a laser Doppler anemometer (LDA) to measure the droplets' time-mean velocity profiles in a two-phase free jet. The recent experiments of Levy and Lockwood (1981), Lee and Durst (1982), Modarress etal. (1984aModarress etal.…”

Section: Introductionmentioning

confidence: 99%

An experimental study of two-phase turbulent coaxial jets

Fan

Zhao

Cen

1992

Experiments in Fluids

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The effect of solid particles on the flow structure of axisymmetric turbulent coaxial jets has been studied. A laser-Doppler anemometer was used to measure the mean and fluctuation velocities of both phases, and a Malvern laser diffraction instrument was applied to measure particle size and concentration. A series of velocity ratios and particle loading ratios were investigated, and the results were analysed for the effects of these ratios on the mixing characteristic and the similarity behavior of the jet. The effects of particle diameter and its distribution were also studied as well as their influence on the coaxial jet behavior.

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Section: Introductionmentioning

confidence: 99%

An experimental study of two-phase turbulent coaxial jets

Fan

Zhao

Cen

1992

Experiments in Fluids

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“…In order to discriminate between the carrier and the particle phases, the principle of pedestal amplitude filtering as Lee and Durst (1982) and by Levy and Lockwood (1981) was adopted. The tests required the use of a Bragg cell, since zero and negative velocities were anticipated.…”

Section: Lda Configuration and Measurement Systemmentioning

confidence: 99%

Measurements in the separation region of a gas-particle cross flow

Fitzpatrick

Lambert

Murray

1992

Experiments in Fluids

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This paper reports the results from a study of the effects of particles on the boundary layer characteristics for cross flow over a single circular cylinder in the near separation region and on a cylinder located in the second row of a small mock-up heat exchanger array. Two size ranges of particles (45-85 Ixm and 100 200 ~tm) with two concentrations were used for the single cylinder tests. For the array, the larger particles were used at a single concentration. For the single cylinder, the results with the larger particles at mass loading ratio of 1.0 show an obvious effect on the velocity profile shape and on the rms levels. For reduced concentrations, and for the smaller particles, the effects are less noticeable. For the array, similar trends are observed and a delay in the separation point is reported.

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“…Ferrante and Elghobashi [10] analyzed the mechanism of particle modification of low-wavenumber energy transfer. In experimental studies on jet two-phase turbulence, large particles enhanced gas-phase turbulence intensity, while small particles attenuated turbulence intensity [2,[11][12][13][14][15]. The two-phase inter-phase interaction in a turbulent channel flow laden with heavy particles has not been sufficiently investigated.…”

Section: Introductionmentioning

confidence: 97%

Inter-phase interaction in a turbulent, vertical channel flow laden with heavy particles. Part II: Two-phase velocity statistical properties

Wang

2010

International Journal of Heat and Mass Transfer

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Velocity measurements in a particle laden turbulent free jet

Cited by 75 publications

References 2 publications

An experimental study of two-phase turbulent coaxial jets

An experimental study of two-phase turbulent coaxial jets

Measurements in the separation region of a gas-particle cross flow

Inter-phase interaction in a turbulent, vertical channel flow laden with heavy particles. Part II: Two-phase velocity statistical properties

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