A Friction Factor Plot for Smooth Circular Conduits, Concentric Annuli, and Parallel Plates

Lohrenz, John; Kurata, Fred

doi:10.1021/ie50608a035

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1962

2022

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Cited by 20 publications

(7 citation statements)

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“…Since = 1 only for a circular pipe, the use of the concept of hydraulic equivalent diameter has not been recommended for laminar flow (Bird et al, 1960;Fahien, 1983). Lohrenz and Kurata (1960) proposed to use an equivalent diameter, D^, given in the form D eq 32µ{ )…”

Section: Theoretical Developmentmentioning

confidence: 99%

Critical Reynolds number for Newtonian flow in rectangular ducts

Tosun¹,

Üner²,

Özgen³

1988

Ind. Eng. Chem. Res.

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Section: Theoretical Developmentmentioning

confidence: 99%

Critical Reynolds number for Newtonian flow in rectangular ducts

Tosun¹,

Üner²,

Özgen³

1988

Ind. Eng. Chem. Res.

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“…div T = Fgrad p Using Equations (5) and (6) 2 IF-gradpl Before Equation (7) is applied to certain rectilinear Newtonian flows, it will be convenient to introduce a special Reynolds number.…”

Section: Development Of the Parametermentioning

confidence: 99%

The laminar‐turbulent transition for flow in pipes, concentric annuli, and parallel plates

Hanks¹

1963

AIChE Journal

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= total ionic concentration in the solution phase, meq./mI. = selectivity coefficient for exchange of ions A and B = ionic concentration in the resin phase, meq./g. (dry) = total ionic capacity of the resin phase, meq./g. = equivalent fraction of an ion in solution phase = equivalent fraction of an ion in solution phase based on only two ions = equivalent fraction of an ion in resin phase = equivalent fraction of an ion in resin phase based on only two ions Su bscripts R = resin phase S = solution phase LITERATURE CITED 1. Dranoff, J. S., and Leon Lapidus,

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“…Comparison to Experiment of Critical Reynolds Number of the Annulus Walker et al (1957) carried out some experiments for annulus flow. They employedthe method of equivalent diameter to calculate the friction factor and then based on that to determine the critical Reynolds number for turbulent transition Lohrenz and Kurata (1960). reviewed the experimental results for the calculation of friction factor for smooth circular conduits, concentric annuli, and parallel plates, annulus flow, and they found that there is a correlation of friction factor for these different flow passages Hanks (1963).…”

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confidence: 99%