Local interfacial velocity measurement method using a four-sensor probe

Shen, Xiuzhong; Nakamura, Hideo

doi:10.1016/j.ijheatmasstransfer.2013.08.064

Cited by 35 publications

(20 citation statements)

References 21 publications

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“…Xue developed a four‐point optical probe with appropriate data processing algorithm to obtain bubble velocity and size. Shen improved the four‐sensor probe methodology for the multidimensional two‐phase flow measurement. In recent years, double and tri‐sensor optical probe have also been applied to liquid–liquid two‐phase flow.…”

Section: Introductionmentioning

confidence: 99%

“…In this article, a four‐sensor optical probe with data processing algorithm has been used to determine the dispersed phase hydrodynamic characteristics in a pulsed sieve plate extraction column. This droplet velocity and diameter algorithms in liquid‐liquid two‐phase flow are based on the velocity model of Mishra, Lucas, and Shen . The influences of the pulsed intensity, the continuous and the dispersed phase superficial velocities on the hydrodynamic characteristics were investigated.…”

Section: Introductionmentioning

confidence: 99%

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A study on hydrodynamic characteristics in a Φ38 pulsed extraction column by four‐sensor optical fiber probe

Yuan

Gao

2016

AIChE Journal

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Accurate prediction of dispersed phase droplet behavior is crucial to the design and scaling‐up of an extraction column. In this article, the dispersed droplet velocity algorithm and the diameter algorithm in a liquid–liquid two‐phase flow have been developed based on the bubble velocity model in gas–liquid two‐phase flow of Lucas [Measurement Science & Technology. 749, 758(2005)] and Shen [International Journal of Multiphase Flow. 593, 617(2005)]. Hydrodynamic characteristics, including droplet diameter, holdup and droplet velocity, were measured using a self‐made four‐sensor optical fiber probe in a 38 mm‐diameter pulsed sieve‐plate extraction column. Water and kerosene were used as continuous and dispersed phases, respectively. The influences of the pulsed intensity, the continuous and dispersed phase superficial velocities on the hydrodynamic characteristics were investigated. The experimental results show that it is reliable to use a four‐sensor optical probe to measure the hydrodynamic characteristics of a pulsed extraction column. © 2016 American Institute of Chemical Engineers AIChE J, 63: 801–811, 2017

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study on hydrodynamic characteristics in a Φ38 pulsed extraction column by four‐sensor optical fiber probe

Yuan

Gao

2016

AIChE Journal

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“…The averaged and maximum relative deviations of air superficial velocity, between the four-sensor probes and rotameter or flow controller, are 7.8% and 22.1%, so a very good agreement has been achieved for all flow conditions, as can it can be compared in the literature for similar works involving two-phase flow area-averaged based validations (Shen and Nakamura, 2013).…”

Section: Disperse Phase Area-averaged Local Flow Parameters and Probementioning

confidence: 61%

“…From the pioneer work of (Kataoka et al, 1986) on the local interfacial area derivation from velocity measurements, (Kim et al, 2001) proposed a miniaturized probe and made it capable of measuring both large and small bubbles. (Shen et al, 2005) and (Shen and Nakamura, 2013) proposed an explicit equation for the instantaneous local interfacial area and local interfacial velocity using four sensor conductivity probes, which take into account both receding and oncoming interfaces. Then, local values of IAC can be calculated as:…”

Section: C) Interfacial Area Concentrationmentioning

confidence: 99%

Local parameters of air–water two-phase flow at a vertical T-junction

Monrós-Andreu

Martínez‐Cuenca

Torró

et al. 2017

Nuclear Engineering and Design

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Significant experimental work and modeling about vertical T-junction as a phase separator has been done for churn and annular flows, but a survey on the literature reveals a lack of experimental data regarding bubbly flow nor any phenomenological explanation to their behavior. The objective of this work is to extend the understanding of these junctions by obtaining complete datasets, i.e. of both gas and liquid, of the phase splitting process in bubbly flow conditions by means of conductivity needle probes, Laser Doppler anemometry and visual inspection. Measurements and observations of the phase split, as well as the vortex structure in a vertical T-junction with equal pipe diameters (52 mm inner diameter), are reported. Results suggest a relationship between the vortex structure and the efficiency of the junction as phase separator.

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“…In order to further verify the accuracy of the void fraction measurements by the differential pressure gauges, we compared them with local void fraction measurements by the optical multi-sensor probe method (Shen et al, 2005b, 2008a, 2008band Shen and Nakamura, 2013 and the X-type hot-film probe method (Bruun, 1995). The measurement errors in both comparisons are within ±10%.…”

Section: Experimental Conditions and Measurement Verificationmentioning

confidence: 99%