The drag coefficient and settling velocity of natural sediment particles
Sign Up to like & getrecommendations! Published in 2019 at "Computational Particle Mechanics"
DOI: 10.1007/s40571-019-00223-6
Abstract: This article reports a study in which drag coefficient is defined more comprehensively. The coefficient is defined as a function of particle nominal diameter, gravitational acceleration, the ambient fluid kinematic viscosity, and the particle shape.… read more here.
Keywords: drag coefficient; settling velocity; particle shape;
A novel approach to model the batch sedimentation and estimate the settling velocity, solid volume fraction, and floc size of kaolinite in concentrated solutions
Sign Up to like & getrecommendations! Published in 2019 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2019.123647
Abstract: Abstract The settling curve is commonly used for studying the sedimentation process of a suspension. This paper introduces a mathematical equation (S-model) to simulate the settling curve of a suspension and offers new approaches to… read more here.
Keywords: velocity solid; settling velocity; model; sedimentation ... See more keywords
Predicting fiber drag coefficient and settling velocity of sphere in fiber containing Newtonian fluids
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2017.09.046
Abstract: Abstract In petroleum industry, fiber containing fluids are widely used as drilling fluids or fracturing fluids to improve the efficiency of cuttings transport during drilling or proppant transport during fracturing. Accurate prediction of fiber drag… read more here.
Keywords: settling velocity; fiber drag; fiber containing; fiber ... See more keywords
Settling behavior of the proppants in viscoelastic foams on the bubble scale
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.106216
Abstract: Abstract Liquid foam is an alternative to water-based fracturing fluid due to its great proppant suspension ability. In this work, theoretical and experimental investigations on the settling behavior of the proppants in viscoelastic foams were… read more here.
Keywords: behavior proppants; settling velocity; settling behavior; bubble scale ... See more keywords
Prediction of the settling velocity of the rod-shaped proppant in vertical fracture using artificial neural network
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2020.108158
Abstract: Abstract As a new technology proppant, rod-shaped proppant is receiving more and more attention because it can greatly improve the performance of hydraulic fracturing. With special shape, the rod-shaped proppant is subject to greater flow… read more here.
Keywords: settling velocity; neural network; rod; prediction ... See more keywords
Predicting Cuttings Settling Velocity in Drilling Muds and in Rising-Bubbles-Containing Muds
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2021.108766
Abstract: Summary The main objectives of this paper are to study the cuttings settling velocity in drilling muds and rising-bubbles-containing muds and to develop a prediction model suitable for both cases. For this purpose, experiments were… read more here.
Keywords: gas; settling velocity; velocity; cuttings settling ... See more keywords
Study on the settling velocity of drilling cuttings in the power law fluid
Sign Up to like & getrecommendations! Published in 2020 at "Powder Technology"
DOI: 10.1016/j.powtec.2019.11.025
Abstract: Abstract Cuttings settle down freely in the drilling fluid due to the density difference when drilling fluid circulation is stopped. Further study of cuttings settling movement helps to predict the risks in hole cleaning. In… read more here.
Keywords: fluid; settling velocity; power law;
Aerobic granulation of single culture protist
Sign Up to like & getrecommendations! Published in 2021 at "Process Biochemistry"
DOI: 10.1016/j.procbio.2021.08.014
Abstract: Abstract Thraustochytrium striatum was selected as a model protist to test the possibility of protist granulation for its good potential of organic waste valorization. Initially, only a selective settling velocity of 9 m h−1 was… read more here.
Keywords: settling velocity; protist; selective settling; granulation ... See more keywords
Oil-mineral flocculation and settling velocity in saline water.
Sign Up to like & getrecommendations! Published in 2020 at "Water research"
DOI: 10.1016/j.watres.2020.115569
Abstract: Cohesive particles in aquatic systems can play an important role in determining the fate of spilled oil via the generation of Oil-Mineral Aggregates (OMAs). Series of laboratory experiments have been conducted aiming at filling the… read more here.
Keywords: settling velocity; water; flocculation; oil mineral ... See more keywords
Improved Settling Velocity for Microplastic Fibers: A New Shape-Dependent Drag Model.
Sign Up to like & getrecommendations! Published in 2021 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c06188
Abstract: Microplastics are abundant in aquatic environments and are an emerging environmental concern. The prediction of their settling velocities is central to predictions of the residence time and concentration depth profiles of microplastics in aquatic environments.… read more here.
Keywords: new shape; microplastic fibers; model; drag ... See more keywords
Settling velocity variation induced by a sphere moving across a two-layer stratified fluid with different rheological characteristics
Sign Up to like & getrecommendations! Published in 2023 at "RSC Advances"
DOI: 10.1039/d2ra08286a
Abstract: Particle settling in stratified fluids is widespread in chemical and pharmaceutical processes, and how to effectively regulate the particle velocity is the key to optimizing the above process technology. In this study, the settling of… read more here.
Keywords: stratified fluid; water; velocity; settling velocity ... See more keywords