Slip ratio in dispersed viscous oil–water pipe flow

Experimental flow pattern map, slippage and time–frequency representation of oil–water two-phase flow in horizontal small diameter pipes

“…The differences between the results presented by Lovick and Angeli (2004b) and the results of this study are likely caused by the different pipe materials. Rodriguez et al (2011) found that different fluid properties and pipe materials could affect the phase distribution across the radial section of the pipe and further affect the slippage characteristics of the two phases. In addition, for the DW/O&DO/W flows, a complicated distribution of dispersed droplets occurs in the continuous phases; therefore, the entrainment of the droplets in the continuous phase should be considered in the investigation of the slippage phenomenon.…”

“…Hapanowicz (2008) presented the relationship between the slippage and the water holdup under the dispersed flows and dual continuous flow and predicted the holdup of the dispersed phases using a drift velocity model. Rodriguez et al (2011) performed an experimental test of horizontal oil-water two-phase flows in a 26.2 mm ID pipe, and the slip ratio in a dispersed viscous oil-water pipe flow was examined using a quick-closing-valves technique.…”

Review of oil–water through pipes

“…There are many parameters that need to be studied meticulously in liquid-liquid flow systems, such as the effect of emulsion see -Nadler and Mewes [32], Yarranton et al [91], and Gafonova and Yarranton [92], spatial distribution, see -Angeli and Hewitt [54] Soleimani et al [55], and Rodriguez et al [93], and the effect droplet size in liquid-liquid flow, see -Angeli and Hewitt [94], Simmons and Azzopardi [95], Lovick and Angeli [86], and Vielma et al [35]. However, in the review of the literature, there were three major problems in two immiscible fluids flow that have been thoroughly studied by many prominent researchers, such as Russell et al [ [90].…”

Drag reduction phenomenon in viscous oil‐water dispersed pipe flow: Experimental investigation and phenomenological modeling

“…The disadvantage of being invasive is in part compensated by a better spatial resolution, the high temporal resolution, low cost and simplicity when compared with other tomography systems. Rodriguez et al33 applied for the first time the capacitive wire‐mesh sensor for the study of viscous oil‐water flow and showed that for a flow dominated by turbulence it can be an accurate and reliable tool.…”