Flow of slurries in pipelines

Abstract

Pressure drop correlations for flow of slurries in pipelines were developed for each of the following four flow regimes: flow with a stationary bed, saltation flow, heterogeneous flow, and homogeneous flow. A total number of 2 848 data points, comprised of 1912 collected from the published literature together with 936 taken using our own test pipelines and relating to ranges of the pertinent variables extensive enough to span all four flow regimes were used as the basis of these correlations. Also, these data were used in developing an associated quantitative regime delineation scheme. The correlations provide an improved predictive capability over previously available procedures and are also broader in scope. The delineation procedure developed here permits straightforward classification of the data according to the flow regime prevailing, and it is moreover inclusive of all the data and is self-consistent.

Support vector regression with parameter tuning assisted by differential evolution technique: Study on pressure drop of slurry flow in pipeline

“…Numbers of such phenomenological modeling have been proposed by Wilson [27,28] Wilson and Pugh [29], Roco and Shook [20,21], Doron et al [7] and many others.…”

“…In spite of the lack of detailed fundamental knowledge required for the formulation and modeling of multiphase turbulent flows, the need to predict slurry behavior handled in various industries has motivated work, aimed at obtaining approximate solutions. Various investigations ( [7,9,13,26,27], etc.) have tried to show and propose correlation relating pressure drop with other parameters of solid-liquid flow, namely solids density, liquid density, particle size, concentration, pipe diameter, viscosity of flowing media, velocity of suspension etc.…”

Rheological Behavior of Aciculate Ultrafineα-FeOOH Particles under Alkaline Conditions

“…4 illustrate rheological behaviors, especially at low shear rates. Many studies have indicated that dispersions of acicular particles have a larger viscosity than those of spherical particles (12)(13)(14)(15). This confirmed that the viscosity and the degree of shear-thinning increase rapidly when acicular -FeOOH particles are formed at the initial to middle reaction stages.…”

A Statistical Evaluation of the Frictional Pressure Losses Correlations for Slurry Flow

“…This complexity may lead erroneous results when calculating friction pressure losses for slurry flow to calculate the resulted bottom hole treating pressure and hence the net pressure. Several researchers [3][4][5][6] provided a comprehensive review and background on slurry flow. However, much of the previous research be focused on the flow of solids in Newtonian fluids and numerous correlations were made available for predicting the slurry relative viscosity which can be used for frictional pressure losses estimation.…”