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Cited by 29 publications
(23 citation statements)
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References 26 publications
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“…However, with increase in the pipe diameter, the share of hydrostatic pressure drop to the total two phase pressure drop becomes considerable and hence noticeably contributes to the total error. A better illustration of this scenario is reported by Ghajar and Bhagwat [41].…”
Section: Void Fraction and Hydrostatic Pressure Dropmentioning
confidence: 81%
See 1 more Smart Citation
“…However, with increase in the pipe diameter, the share of hydrostatic pressure drop to the total two phase pressure drop becomes considerable and hence noticeably contributes to the total error. A better illustration of this scenario is reported by Ghajar and Bhagwat [41].…”
Section: Void Fraction and Hydrostatic Pressure Dropmentioning
confidence: 81%
“…Drift velocity assumed negligible in mini-channels Reported by Woldesemayat and Ghajar [105] c Not a drift flux model correlation but considered in this chapter since it performs well in high region of void fraction [41] showed that the void fraction correlation directly influences the two phase mixture density and this influence is of different magnitude for different ranges of the void fraction. They reported that an error of up to ±30 % in small range of void fraction (0 \ a B 0.25) has a small effect on two phase mixture density while a relatively small error of ±10 % in prediction of the large range of void fraction (0.75 \ a \ 1) may cause a considerable error in estimation of the two phase mixture density.…”
Section: Performance Assessment Of Two Phase Void Fraction Correlationsmentioning
confidence: 94%
“…The average gas and liquid phase velocities are used to calculate the slip ratio, S, and thereby to characterize the two-phase flow, whereas the two-phase mixture density is required in calculation of two-phase pressure drop which in turn is a key parameter for the proper design and safe operation of processes involving two-phase flow. The air and water average velocities, u a and u w , can be defined as the ratio of either corresponding air or water superficial velocity divided by the void fraction or the liquid holdup, respectively, and they can be calculated as show in (13) and (14), whereas the two-phase mixture density, ρ m , is given in (15) and it constitutes the standard calculation approach according to literature [14].…”
Section: A Validation Of the Computational Modelmentioning
confidence: 99%
“…32 void fraction models and correlations are used to compare to the measured void fractions in the horizontally helically coiled rectangular channels in this study. Taking into account the effect of the average void fraction on the two-phase mixture density, this influence is of different magnitude for different ranges of the void fraction according to the study by Ghajar and Bhagwat [24].…”
Section: Comparison Of the Measured Average Void Fractions To 32 Selementioning
confidence: 99%
“…Adopting the approach of Ghajar and Bhagwat [24], the performance of the selected models and correlations are assessed within certain error bands criterion of ±30%, ±20%, and ±10% for three different ranges of the average void fraction namely, 0 < α ≤ 0.2, 0.2 < α ≤ 0.5, 0.5 < α ≤ 1, respectively. According to the study of Woldesemayat and Ghajar [11], the selected void fraction models and correlations considered in our study are classified into four categories, i.e.…”
Section: Comparison Of the Measured Average Void Fractions To 32 Selementioning
confidence: 99%