Academic literature on the topic 'Cellulose-water interactions'

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Journal articles on the topic "Cellulose-water interactions"

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De Wever, Pieter, Rodrigo de Oliveira-Silva, João Marreiros, Rob Ameloot, Dimitrios Sakellariou, and Pedro Fardim. "Topochemical Engineering of Cellulose—Carboxymethyl Cellulose Beads: A Low-Field NMR Relaxometry Study." Molecules 26, no. 1 (2020): 14. http://dx.doi.org/10.3390/molecules26010014.

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The demand for more ecological, highly engineered hydrogel beads is driven by a multitude of applications such as enzyme immobilization, tissue engineering and superabsorbent materials. Despite great interest in hydrogel fabrication and utilization, the interaction of hydrogels with water is not fully understood. In this work, NMR relaxometry experiments were performed to study bead–water interactions, by probing the changes in bead morphology and surface energy resulting from the incorporation of carboxymethyl cellulose (CMC) into a cellulose matrix. The results show that CMC improves the swe
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Chami Khazraji, Ali, and Sylvain Robert. "Interaction Effects between Cellulose and Water in Nanocrystalline and Amorphous Regions: A Novel Approach Using Molecular Modeling." Journal of Nanomaterials 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/409676.

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The hydrophilic/hydrophobic nature of cellulose is based on its structural anisotropy. Cellulose chains are arranged in a parallel manner and are organized in sheets stabilized by interchain OH–O hydrogen bonds, whereas the stacking of sheets is stabilized by both van der Waals (vdW) dispersion forces and weak CH–O hydrogen bonds. Cellulose has a strong affinity to itself and materials containing hydroxyls, especially water. Based on the preponderance of hydroxyl functional groups, cellulose polymer is very reactive with water. Water molecular smallness promotes the reaction with the cellulose
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Stenqvist, Björn, Erik Wernersson, and Mikael Lund. "Cellulose-Water Interactions: Effect of electronic polarizability." Nordic Pulp & Paper Research Journal 30, no. 1 (2015): 26–31. http://dx.doi.org/10.3183/npprj-2015-30-01-p026-031.

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Voronova, M. I., T. N. Lebedeva, M. V. Radugin, O. V. Surov, A. N. Prusov, and A. G. Zakharov. "Interactions of water–DMSO mixtures with cellulose." Journal of Molecular Liquids 126, no. 1-3 (2006): 124–29. http://dx.doi.org/10.1016/j.molliq.2005.12.001.

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Masas, Daria S., Maria S. Ivanova, Gocha Sh Gogelashvili, Alexander S. Maslennikov, Yury B. Grunin, and Tatiana Yu Grunina. "Analysis of water state adsorbed by cellulose fibers." Butlerov Communications 58, no. 5 (2019): 24–31. http://dx.doi.org/10.37952/roi-jbc-01/19-58-5-24.

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Modernized model of microfibril cellulose layered structure is proposed. This model considers presence of slit-shaped micropores in space between elementary fibrils and cellulose microfibrils. It’s discussed the nature of donor-acceptor hydrogen bonds formation: intra-, intermolecular, and interlayer bonds inherent in each glucopyranous cellulose link. It’s described the mechanism of water molecules specific adsorption interactions in a monolayer with active centers located on the hydrophilic surfaces of elementary fibrils. Dipole-dipole energy transition into energy of hydrogen bond is discus
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Pontoh, Raynardthan, Vania Edita Rarisavitri, Christine Charen Yang, Maximilliam Febriand Putra, and Daru Seto Bagus Anugrah. "Density Functional Theory Study of Intermolecular Interactions between Amylum and Cellulose." Indonesian Journal of Chemistry 22, no. 1 (2022): 253. http://dx.doi.org/10.22146/ijc.69241.

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Amylum is one of the polysaccharides developed into biodegradable plastic bags. However, amylum-based plastics are easily damaged due to their low mechanical strength and hydrophilic properties. Cellulose is used as a support material in amylum-based plastics to increase strength and reduce water damage. This study investigated the molecular interactions between amylum and cellulose computationally. The minimum interaction energy of amylum and cellulose was calculated using in silico modeling using the Density Functional Theory (DFT) method. The B3LYP function and the basis set 6-31++g** were
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Chami Khazraji, Ali, and Sylvain Robert. "Self-Assembly and Intermolecular Forces When Cellulose and Water Interact Using Molecular Modeling." Journal of Nanomaterials 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/745979.

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Cellulose chains are linear and aggregation occurs via both intra- and intermolecular hydrogen bonds. Cellulose has a strong affinity to itself and toward materials containing hydroxyls groups. Based on the preponderance of hydroxyl functional groups, cellulose is very reactive with water. At room temperature, cellulose chains will have at least a monomolecular layer of water associated to it. The formation of hydrogen bonds at the cellulose/water interface is shown to depend essentially on the adsorption site, for example, the equatorial hydroxyls or OH moieties pointing outward from the cell
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Lee, Hye Ji, Younghyun Cho, and Sang Wook Kang. "Formation of Nanochannels Using Polypropylene and Acetylcellulose for Stable Separators." Membranes 12, no. 8 (2022): 764. http://dx.doi.org/10.3390/membranes12080764.

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In this study, a polymer separator with enhanced thermal stability is prepared to solve the problem of thermal durability of lithium-ion battery separators. This separator is manufactured by coating a solution of acetyl cellulose and glycerin on polypropylene. The added glycerin reacts with the acetyl cellulose chains, helping the chains become flexible, and promotes the formation of many pores in the acetyl cellulose. To improve the thermal stability of the separator, a mixed solution of acetyl cellulose and glycerin was coated twice on the PP membrane film. Water pressure is applied using a
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Tammelin, Tekla, Ramarao Abburi, Marie Gestranius, Christiane Laine, Harri Setälä, and Monika Österberg. "Correlation between cellulose thin film supramolecular structures and interactions with water." Soft Matter 11, no. 21 (2015): 4273–82. http://dx.doi.org/10.1039/c5sm00374a.

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Wang, Huai Fang, Hai Ning Lv, Jing Feng, and Zhi Kai Wang. "Novel Blend Films Prepared from Solution of Collagen and Cellulose in 1-Allyl-3-methylimidazolium Chloride Ionic Liquid." Advanced Materials Research 418-420 (December 2011): 30–33. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.30.

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Collagen/cellulose films were made by the blend solutions of collagen, cellulose in this paper. To begin with, collagen and cellulose was dissolved in 1-allyl-3-methylimidazolium chloride ([Amim]Cl). The structure of the blend films was characterized by FTIR and XRD. The effects of weight ratio between the two polymers on light transmittance, tensile strength, elongation at break and water absorption of the film were studied. The results showed that there were strong interactions and good compatibility between collagen and cellulose in the film and the polymers have strongest interactions at t
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Dissertations / Theses on the topic "Cellulose-water interactions"

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McCrystal, Conor B. "Characterisation of the fundamental interactions between water and cellulose ether polymers." Thesis, Liverpool John Moores University, 1998. http://researchonline.ljmu.ac.uk/4912/.

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Lopes, Da Costa Lisa. "Conception d’actionneurs à base de nanofibres de cellulose induits par l’eau." Electronic Thesis or Diss., Nantes Université, 2023. http://www.theses.fr/2023NANU4060.

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Le changement de forme est un phénomène particulièrement observé dans le règne végétal, comme l'ouverture et la fermeture des écailles de pommes de pin sous l'effet de l'humidité. Cette capacité à se mouvoir en fonction d’un stimulus externe est dénommée actionnement. L’objectif de cette thèse est de concevoir des actionneurs inspirés de ce phénomène naturel à partir de nanofibres de cellulose (NFC). Les NFC sont une excellente matière première végétale pour fabriquer des actionneurs grâce à leurs groupes hydroxyles permettant l'introduction de groupes chimiques sensibles à un stimulus, à leur
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Lindh, Erik L. "Cellulose-water interaction: a spectroscopic study." Doctoral thesis, KTH, Tillämpad fysikalisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199200.

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The human society of today has a significantly negative impact on the environment and needs to change its way of living towards a more sustainable path if to continue to live on a healthy planet. One path is believed to be an increased usage of naturally degradable and renewable raw materials and, therefore, attention has been focused on the highly abundant biopolymer cellulose. However, a large drawback with cellulose-based materials is the significant change of their mechanical properties when in contact with water. Despite more than a century of research, the extensively investigated intera
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Shetty, Pramod. "Study on Supramolecular Gel Lubricants." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76007.

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Most of the rolling element bearings are lubricated with Grease lubricant. Generally, the grease is expected to serve for life. The major causes of the bearing failure are due to the failure of the lubrication. The grease will experience creeping, oil permeation, oil separation etc. The separated oil will be lost permanently from the bearing. The widely used grease for general application is the lithium grease. The thickener of the grease consists covalent bond. When the grease is sheared, the breakage of the covalent bond will be permanent, resulting in the permanent loss of the rheological p
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Lin, Ching-Yuan, and 林清源. "Interaction between hydrophobically modified hydroxyethyl cellulose and nonionic surfactant in pyridine and water mixed solvent." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/58663985218382211338.

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碩士<br>國立成功大學<br>化學工程學系碩博士班<br>94<br>Hydrophobically modified polymer and surfactant system have been applied in industry many years. So, interaction between hydrophobically modified polymer and surfactant has attracted growing attention. In this experiment, we study the interaction between nonionic polymer (hydrophobically modified hydroxyethyl cellulose) and nonionic surfactant (Tergitol 15-S-5). The first step in my experiment is preparation of hydrophobically modified hydroxyethyl cellulose with lauroyl chloride. The second step in my experiment is to discuss interaction between hydrophobic
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Book chapters on the topic "Cellulose-water interactions"

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Miyamoto, Hitomi, Keita Sakakibara, Isao Wataoka, Yoshinobu Tsujii, Chihiro Yamane, and Kanji Kajiwara. "Interaction of Water Molecules with Carboxyalkyl Cellulose." In Cellulose Science and Technology. John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119217619.ch6.

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Costa, Carolina, Bruno Medronho, Björn Lindman, Håkan Edlund, and Magnus Norgren. "Cellulose as a Natural Emulsifier: From Nanocelluloses to Macromolecules." In Cellulose [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99139.

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During the last decade, cellulose structural features have been revisited, with particular focus on its structural anisotropy (amphiphilicity) and interactions determining its recalcitrance to dissolution. Evidences for cellulose amphiphilicity are patent, for instance, in its capacity to adsorb at oil–water interfaces, thus being capable of stabilizing emulsions. This behavior is observable in all its forms, from cellulose nanoparticles to macromolecules. This chapter is divided into two main parts; first, the fundamentals of emulsion formation and stabilization will be introduced, particular
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Barman, Sanmitra, Sambhunath Bera, and Mehreen Javid. "Cellulose-Based Nanomaterials (Nanobioadsorbents) for Recovery of Valuable Metals from Wastewater: A Review." In Nanomaterials: An Approach Towards Environmental Remediation. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815223613124010010.

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In recent times, water pollution has become an issue of major concern. Various materials and techniques have been adopted for the purification of water. Among many, cellulose-based nanomaterials have gained valuable use in water remediation processes. These cellulose-based materials are highly biocompatible, abundantly available natural biopolymers and enjoy the advantage of containing many functional groups. The functional groups attached to cellulose biopolymers ensure their capability of modification with various nanoparticles like silver (Ag), graphene oxide (GO), and zinc oxide (ZnO) nano
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Conference papers on the topic "Cellulose-water interactions"

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Forsström, Jennie, Malin Eriksson, and Lars Wågberg. "Molecular Interactions between Model Cellulose Surfaces and Ink – Influence of Surface Energy and Surface Structure on Adhesion." In Advances in Paper Science and Technology, edited by S. J. I’Anson. Fundamental Research Committee (FRC), Manchester, 2005. http://dx.doi.org/10.15376/frc.2005.2.1379.

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The influence of surface roughness and surface hydrophobicity on ink detachment of water-based flexographic ink was studied. It was shown that increased surface roughness and an increased surface hydrophobicity both had a negative effect on ink detachment. The increased surface roughness was suggested to increase the molecular contact area between ink and cellulose and thereby also to decrease ink detachment. Ink cellulose interaction was evaluated from interfacial energies and contact angle measurements. A new technique in which the adhesion properties between ink and the model cellulose surf
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Neuman, Ronald D. "Surface Force Measurement in Papermaking Systems." In Products of Papermaking, edited by C. F. Baker. Fundamental Research Committee (FRC), Manchester, 1993. http://dx.doi.org/10.15376/frc.1993.2.969.

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The surface force technique, whereby the forces acting between two solid surfaces immersed in liquids or in adhesive contact are directly measured, represents a novel approach for both fundamental and application-oriented studies of the surface and colloid science of papermaking. The nature and measurement of surface forces are briefly discussed, and some results reported for mica surfaces are reviewed in order to illustrate the surface chemical information obtainable using a conventional Israelachvili-type surface force apparatus. In the case of cellulose surfaces immersed in water and aqueou
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Simion, Demetra, Carmen Gaidau, Jianzhong Ma, and Zhang Wenbo. "New nanostructured composite obtained by innovative technologies." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.22.

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The paper is focused on obtaining a new nanostructured composite by innovative technologies based on: fibrillar cellulose/titanium dioxide/surfactants (bolaform- dodecandioyl-diglycine and surfactant classic-collagen hydrolysate)/ethanol/water, for improved surface properties. Innovation consists in technologies for obtaining new nanostructured composites, solubilisation/compatibilisation of their component substances for the conditioning of supports processed with the film created by evaporation of the emulsion nanocomposites. Fibrillar cellulose/titanium dioxide nanocomposites have been stab
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Lindström, Tom. "Some Fundamental Chemical Aspects on Paper Forming." In Fundamentals of Papermaking, edited by C. F. Baker and V. Punton. Fundamental Research Committee (FRC), Manchester, 1989. http://dx.doi.org/10.15376/frc.1989.1.311.

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The fundamental physico-chemical aspects of retention chemistry are reviewed in the light of basic concepts in colloid chemistry. Special emphasis has been paid to the surface chemistry of cellulose and cellulosic materials, their origin of charge, dispersion force interactions as well as the implication of certain aspects of peculiar cellulosic surfaces, e.g. the influence of their porosity on polymer adsorption. Charge neutralization, patch flocculation, heterocoagulation, bridging and complex flocculation phenomena are discussed as well as polymer adsorption phenomena at the cellulose/water
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Wang, Ying, and Youping Chen. "An Atomic Model of Cellulose Network in Wood Cell Wall." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67603.

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Wood is composed of parallel columns of long hollow cells which are made up of layered composite of semi-crystalline cellulose fibrils embedded in an amorphous matrix of hemicellulose and lignin. The extraordinary mechanical performance of wood is believed to result from a molecular mechanism operated through hydrogen bond connection. However, the molecular interactions, the assembly method of cell-wall components, as well as the molecular mechanisms responsible for the deformation of wood, are not well understood yet. Progress in studying the superior mechanical properties of wood cell is sev
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Paajanen, A., P. Penttilä, A. Zitting, and J. A. Ketoja. "New Tools to Study Water Interactions of Microfibril Bundles: Molecular Modelling Based on Nanoscale Characterization." In Advances in Pulp and Paper Research. Pulp & Paper Fundamental Research Committee (FRC), Manchester, 2022. http://dx.doi.org/10.15376/frc.2022.1.483.

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The picture of the smallest structural units of wood fibres, that is, cellulose microfibrils and their bundles, has become more accurate during the last couple of decades, when information gained from several experimental characterisations has been drawn together. This work has been supported by computational methods that allow one to test the behaviour of postulated structures on the nanometre scale, and thus help in interpreting the experimental data. Bound water is an essential component in these models, as it affects both the structural swelling and the mechanical properties of the fibre w
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Azzaoui, Khalil. "A Novel Approach to Prepare a Composite of Hydroxyapatite with Cellulose Nanocomposites by Novel Methods Including Theoretical Studies." In 8th World Conference on Chemistry and Chemical Engineering and 8th World Conference on Advanced Materials, Nanoscience and Nanotechnology. Eurasia Conferences, 2025. https://doi.org/10.62422/978-81-981865-7-7-022.

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This paper presents a novel cheminformatics approach for the design and synthesis of hydroxyapatite/ cellulose nanocomposites, which have potential biomedical and environmental applications, removal of dyes. The nanocomposites are synthesized by the co-precipitation method with different ratios of hydroxyapatite and cellulose. Over the past decade, calcium phosphate composites and similar biomaterials have seen commercial use in bone substitution and allograft applications. These biomaterial composites, which include an organic matrix and an inorganic mineral, have been developed. The principa
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Jaya Prakash, Nirmala, Rejish Ramakrishnan, Senthil Vadivu Kulandhaivelu, and Anantha Janani Vellaisamy Singaram. "Preparation and characterisation of carboxymethyl cellulose/carrageenan/jackfruit seed starch blend film for packaging applications." In 11th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design, 2022. http://dx.doi.org/10.24867/grid-2022-p8.

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In this study, carboxymethyl cellulose, carrageenan-based films and a blend film with 1:1 concentration were prepared using the solvent casting method and the influence of various concentrations of jackfruit seed starch (0, 0.5, 1.0, 1.5, and 2 g) on its functional properties were investigated. The effect of jackfruit seed starch on strength properties such as tensile strength and elongation, as well as waterrelated characteristics such as water contact angle, water vapour permeability, and moisture content, were evaluated and compared with the results of the control blend films. FT-IR, TGA, S
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Quigley, Connor, and Md Ahasan Habib. "3D Co-Printability of PCL and Hybrid Hydrogels." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-85685.

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Abstract 3D bioprinting has recently gained popularity due to its inherent capability of releasing cell-seeded and cell-laden biomaterials in a defined location to fabricate patient-specific scaffolds. Multi-nozzle extrusion-based 3D bio-printing allows the fabrication of various natural and synthetic biopolymers and the investigations of material to material and cell to material interactions, and eventually with a high percentage of cell viability and proliferation. Although natural hydrogels are demanding candidates for bio-printing because of their biocompatibility and high-water content, e
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Niazi, Erfan, Mehrzad Shams, Arash Elahi, and Goodarz Ahmadi. "Simulation of Gas – Non-Newtonian Liquid Flow in a Rectangular Bubble Column by Considering Bubbles Interactions." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72361.

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In this article a CFD model of a three-dimensional Eulerian-Lagrangian is developed for a gas - non-Newtonian liquid flow in a rectangular column. The model resolves the time-dependent, three-dimensional motion of gas bubbles in a liquid to simulate the trajectory of bubbles. Our model incorporates drag, gravity, buoyancy, lift, pressure gradient and virtual mass forces acting on a bubble rising in a liquid, and accounts for two-way momentum coupling between the phases. Population balance equation is solved to model bubble coalescence and break up. In bubble coalescence, Prince and Blanch mode
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