The Role of Experiments in Two-Phase Systems With Particular Reference to Measurement Techniques

Hewitt, Geoffrey F.

doi:10.1016/b978-0-08-017035-0.50022-7

Cited by 5 publications

(3 citation statements)

References 98 publications

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“…If wall shear stress can be measured, then interphase momentum transfer can be calculated as discussed later. Several methods of measuring wall shear stress are available (Hewitt (1972(Hewitt ( , 1979). The most straightforward of these is to balance the force on a movable section of the wall, or to measure the fluid momentum flux near the wall with an impact probe.…”

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Wall shear stress and mass transfer in vertical two‐component flow

Surgenor

Banerjee

1981

Can J Chem Eng

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Mass transfer rates in vertical gas‐liquid flow were measured by an electrochemical technique. The flow regimes studied were slug, churn and annular. Average mass transfer coefficients in gas‐liquid flow could be correlated by expressions similar to those for single phase flow. Fluctuations in local mass transfer coefficient could be used to indicate flow regimes. Average wall shear stress determined from the average mass transfer coefficients agreed with values calculated from measurements of pressure drop, void fraction and flow rate, provided flow reversals did not occur. The results indicate that the electrochemical technique could be used to measure wall shear stress in accelerating gas‐liquid flows, such as critical flow.

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Wall shear stress and mass transfer in vertical two‐component flow

Surgenor

Banerjee

1981

Can J Chem Eng

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“…The instrumentation used today is, as a rule, limited either to flows with a low flow-rate concentration (~f < 2 kg/h/kg/h) of the solid phase (high-speed cinematography [3,4] and other optical methods [5,6]) or to small (d < 200 pm) particles (isokinetic sampling [7,8], laser diagnostics [9]) or else by the information on the values averaged over the cross section (the cutoff method [i0, ii], photoelectric methods [12,13]).…”

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Piezoelectric measurement of the local characteristics of the motion of solid particles in a two-phase flow

Krupnik¹,

Oleinik²,

Ainshtein³

1981

Journal of Engineering Physics

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“…here, and the interested reader is directed to the summary of LeTourneau ',' and Bergles, 12 and to the reviews by Delhaye, 22 ' 24 Gouse, 36 and Hewitt. 45 :;, ' -•…”

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Summary on experimental methods for statistical transient analysis of two-phase gas-liquid flow. [BWR, PWR, and LMFBR]

Delhaye¹,

Jones²

1976

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Separation of Steam and Water Distributions According to Stefanovic et al 13 2. Separation of Steam and Water Distributions According to Barois. 14 3. Subcooled Boiling-temperature Histograms 15 4. Different Hypotheses Concerning the Separation of Liquid and Steam Histograms 16 5. Most Probable Liquid Temperature and Void Fraction above a Nucleus in Nucleate Boiling 17 6. Glass-rod Optical Probe 18

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The Role of Experiments in Two-Phase Systems With Particular Reference to Measurement Techniques

Cited by 5 publications

References 98 publications

Wall shear stress and mass transfer in vertical two‐component flow

Wall shear stress and mass transfer in vertical two‐component flow

Piezoelectric measurement of the local characteristics of the motion of solid particles in a two-phase flow

Summary on experimental methods for statistical transient analysis of two-phase gas-liquid flow. [BWR, PWR, and LMFBR]

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