Slug Frequency in Horizontal Gas-Liquid Slug Flow

Greskovich, E. J.; Shrier, Alvin

doi:10.1021/i260042a030

Cited by 67 publications

(23 citation statements)

References 3 publications

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“…The coefficients are obtained by non-linear least square fitting. On the same graph, the frequency estimated by the original relation proposed by Greskovich and Shrier [14] is also shown. The frequencies predicted by Greskovich and Shrier [14] are much higher than the ones actually measured; this difference has to be ascribed to the high oil viscosity.…”

Section: Resultsmentioning

confidence: 77%

“…On the same graph, the frequency estimated by the original relation proposed by Greskovich and Shrier [14] is also shown. The frequencies predicted by Greskovich and Shrier [14] are much higher than the ones actually measured; this difference has to be ascribed to the high oil viscosity. Note that Greskovich and Shrier relation was derived for air/water flows and it is reported here to highlight the differences between oil/water and air/water systems rather than for a quantitative comparison with our The diffusional analysis can be further used to distinguish between regular and Brownian processes by looking at the value of b 1 -see Eq.…”

Section: Resultsmentioning

confidence: 77%

“…this equation has been derived following the same structure of the relation by Greskovich and Shrier [14] where k ¼ j w =ðj w þ j o Þ and Fr m ¼ ðj w þ j o Þ 2 =gD. The coefficients are obtained by non-linear least square fitting.…”

Section: Resultsmentioning

confidence: 99%

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Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Poesio

2008

Experimental Thermal and Fluid Science

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Section: Resultsmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 77%

See 1 more Smart Citation

Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Poesio

2008

Experimental Thermal and Fluid Science

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“…Articles have appeared by Mamaev ( 1965), Gallyamov andGoldzberg ( 1967, 1968), ISUPOV and llamaev ( 1968), and Guzhov et al (1967), representing a sizable research effort in this area. Similarly, a number of American works, such as those by Bonnecaze et al ( 1969Bonnecaze et al ( , 1971, Greskovich (1972), Bonderson ( 1969), and many contributions by Griffith et a]. (1971,1973), have also considered the subject of inclined two-phase flows.…”

Section: Conclusion a N D Significancementioning

confidence: 99%

“…A particular method for correlating actual liquid holdup with flowing liquid quality has been discussed by most of the above Russian investigators and expanded upon by Greskovich et al ( 1969), Greskovich and Shrier ( 1971), and Greskovich (1972). The correlation utilizes only mixture Froude number as a parameter and has been shown by Greskovich and Shrier (1971) to be quite accurate for horizontal flows, The only reported use of such a correlation for inclined flows is made by Guzhov et a].…”

Section: Conclusion a N D Significancementioning

confidence: 99%

Correlation and prediction of gas‐liquid holdups in inclined upflows

Greskovich

Cooper

1975

AIChE Journal

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A correlation is developed for predicting in-situ (or true) liquid holdups for two-phase, gas-liquid slug flows in inclined pipes. The correlation is based on experimental data collected in pipes ranging from 2.54 to 7.94 cm in diameter with the air-water system used.The experimental data used to develop the correlation were collected at zero input liquid qualities, as previously discussed by Greskovich (1973), and extended over the entire range. These data revealed little diameter effect on holdup for diameters greater than 2.54 cm but a marked effect of angle of inclination. Predicted holdup values show good agreement with experimental data. E. J. GRESKOVICH and W. T. COOPER Department of Chemical EngineeringBucknell University Lewisburg, Pennsylvania 17837 SCOPEThe prediction of liquid holdup for two-phase, gasliquid slug flows in pipelines is a must for design engineers. Correlations, for example, based on the early work of Lockhart and Martinelli (1949) for horizontal flows have been extended to inclined flows, and predictions by Flannigan (1958) for the contribution of hills to overall line pressure drops have markedly added to the technology, but both leave a lot to be desired.The objective of the research reported here was to develop a holdup correlation for inclined two-phase flows using only operating parameters known a priori to the design engineer. The correlation was to be tested with data collected in pipes up to a diameter of 7.94 cm with the air-water system used. Rather than collect holdup data over the entire range of input liquid qualities, experimental data at zero input liquid qualities were obtained and extrapolated by using a new technique (Greskovich, 1973) based on the correlation of Guzhov et al. (1967).Once verified, the model and resulting correlation can be used for scale-up purposes. CONCLUSIONS A N D SIGNIFICANCEIt has been shown that in-situ, or true, liquid holdups for inclined two-phase slug flows can be easily obtained over the range by experimentally measuring such holdups at zero input liquid qualities and then extrapolating the data based on Greskovich (1973). Experimental holdup data from a 7.94 cm diameter pipe were compared with data from smaller diameter pipes, and, based on the correlation of true liquid holdup against input liquid quality, by using mixture Froude number and angle of inclination as parameters, there appeared to be little direct effect of pipe diameter for pipes greater than 2.54 cm other than that taken into account by the mixture Froude number.

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Prediction of gas‐liquid holdup for inclined flows

Greskovich¹

1973

AIChE Journal

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Slug Frequency in Horizontal Gas-Liquid Slug Flow

Cited by 67 publications

References 3 publications

Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Correlation and prediction of gas‐liquid holdups in inclined upflows

Prediction of gas‐liquid holdup for inclined flows

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