Fluid and Particle Motion in Turbulent Stirred Tanks. Fluid Motion

Schwartzberg, Henry G.; Treybal, Robert E.

doi:10.1021/i160025a001

Cited by 92 publications

(14 citation statements)

References 15 publications

(20 reference statements)

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“…An example of such comparison for the axial components of the mean and fluctuating velocities in the regions II and III is shown in Figs 4,5. The similar consistency of the calculation results for both widths was obtained for the other speed and size of stirrer. However, the dispersion of the fluctuation velocity values was somewhat higher in the case of the smaller width when the number N was below 10.…”

Section: Resultssupporting

confidence: 71%

Turbulent flow chracteristics for pitched blade turbine

Jaworski

Fořt

Stręk

1988

Collect. Czech. Chem. Commun.

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Measurements of the velocity of a stirred liquid in turbulent flow were performed for the area surrounding a pitched blade turbine. A cylindrical tank equipped with four standard baffles and the stirrer was used in the study. A number of traces of tracer particles were photographed and used to determine instantaneous values of the radial and axial components of the liquid local velocity. Those values were employed to estimate local values of the radial and axial components of the mean and fluctuating velocities. Analysis of the radial distribution of the fluctuating velocity components revealed the existence of the local isotropy of those components for the entire investigated area upstream and downstream the stirrer. Moreover, the homogeneity of turbulence in the stream entering the stirrer and in the induced stream can be assumed. The discharge stream showed an approximate homogeneous turbulence of intensity over 2 times higher than that for the other streams. • Part LXIII in the series Studies on Mixing; Part LXXII: Collect. Czech. Chern. Commun. 53, 7]] (1988). •• Presented at the CHISA '87 Congress, Prague 1987.

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Section: Resultssupporting

confidence: 71%

Turbulent flow chracteristics for pitched blade turbine

Jaworski

Fořt

Stręk

1988

Collect. Czech. Chem. Commun.

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“…Schwartzberg (15) The values of u'chosen are composite averages of the three components of the fluctuating velocity, since further refinement seemed unwarranted. The third feed position, directly below the impeller center line, i s not considered further since no estimate of u' i s available.…”

Section: Correlation Of Experimental Resultsmentioning

confidence: 99%

Mixing and product distribution for a liquid‐phase, second‐order, competitive‐consecutive reaction

Paul

Treybal

1971

AIChE Journal

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“…The studies carried out by Schwartzberg and Treybal [3] and Nouri and Whitelaw [4] indicated a significant reduction in particle settling velocities, with the velocity measurements being as low as 30% of those in a stagnant liquid. That in turn implies an increase in drag coefficients under free-stream turbulence conditions.…”

Section: Introductionmentioning

confidence: 98%