-PDF Download- Fourier Transform Rheology On Dispersions Based On Newtonian Fluids EBOOK

Fourier Transform Rheology on Dispersions Based on Newtonian Fluids

Author: Kathrin Reinheimer

Publisher: Logos Verlag Berlin GmbH

Published: 2012

Total Pages: 200

ISBN-13: 3832531386

Dispersionen sind ein heterogenes Gemisch aus zwei Stoffen, die sich nicht miteinander mischen. In der vorliegenden Arbeit werden sowohl Suspensionen bestehend aus einer festen dispersen Phase in einem flussigen Dispersionsmedium, Emulsionen bestehen aus zwei nicht mischbaren Flussigkeiten als auch Schaume, gebildet aus einer Gasphase dispergiert in einer Flussigkeit, untersucht. Als Hauptcharakterisierungsmethode dient die Fourier Transformations-Rheologie (FT-Rheologie), welches eine mechanische Charakterisierungsmethode im nichtlinearen Bereich darstellt.

Advances in the Flow and Rheology of Non-Newtonian Fluids

Author: D.A. Siginer

Publisher: Elsevier

Published: 1999-05-07

Total Pages: 895

ISBN-13: 0080540554

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These two volumes contain chapters written by experts in such areas as bio and food rheology, polymer rheology, flow of suspensions, flow in porous media, electrorheological fluids, etc. Computational as well as analytical mathematical descriptions, involving appropriate constitutive equations deal with complex flow situations of industrial importance. This work is unique in that it brings together state of the art reviews and recent advances in a variety of areas, involving viscoelastic materials, in a desirable and timely manner.

Rheology of Fresh Cement-Based Materials

Author: Qiang Yuan

Publisher: CRC Press

Published: 2022-12-28

Total Pages: 339

ISBN-13: 1000821250

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This book introduces fundamentals, measurements, and applications of rheology of fresh cement-based materials. The rheology of a fresh cement-based material is one of its most important aspects, characterizing its flow and deformation, and governing the mixing, placement, and casting quality of a concrete. This is the first book to bring the field together on an increasingly important topic, as new types of cement-based materials and new concrete technologies are developed. It describes measurement equipment, procedures, and data interpretation of the rheology of cement paste and concrete, as well as applications such as self-compacting concrete, pumping, and 3D printing. A range of other cement-based materials such as fiber-reinforced concrete, cemented paste backfills, and alkali-activated cement are also examined. Rheology of Fresh Cement-Based Materials serves as a reference book for researchers and engineers, and a textbook for advanced undergraduate and graduate students.

Rheology and Fourier-Transform Rheology on Water-Based Systems

Author: Christopher Klein

Publisher: Logos Verlag Berlin GmbH

Published: 2008

Total Pages: 249

ISBN-13: 3832519882

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The influence of shear fields on water-based systems was investigated within this thesis. The non-linear rheological behaviour of spherical and rod-like particles was examined with Fourier-Transform rheology under LAOS conditions. As a model system for spherical particles two different kinds of polystyrene disper- sions, with a solid content higher than 0.3 each, were synthesised within this work. Due to the differences in polydispersity and Debye-length, differences were also found in the rheology. In the FT-rheology both kinds of dispersions showed a similar rise in the intensities of the magnitudes of the odd higher harmonics, which were predicted by a model. The, in some cases additionally appearing second harmonics, were not predicted. A novel method to analyse the time domain signal was developed, that splits the time domain signal up in four characteristic functions. Those characteristic functions correspond to rheological phenomena. In some cases the intensities of the Fourier components can interfere negatively. FD-virus particles were used as a rod-like model system, which already shows a highly non-linear behaviour at concentrations below 1. % wt. Predictions for the dependence of the higher harmonics from the strain amplitude described the non-linear behaviour well at large, but no so good at small strain amplitudes. Ad- ditionally the trends of the rheological behaviour could be described by a theory for rod-like particles. An existing rheo-optical set-up was enhanced by reducing the background birefringence by a factor of 20 and by increasing the time resolution by a factor of 24. Additionally a combination of FT-rheology and rheo-optics was achieved. The influence of a constant shear field on the crystallisation process of zinc oxide in the presence of a polymer was examined. The crystallites showed a reduction in length by a factor of 2. The directed addition of polymers in combi- nation with a defined shear field can be an easy way for a defined change of the form of crystallites.

Advances in Food Rheology and Its Applications

Author: Jasim Ahmed

Publisher: Woodhead Publishing

Published: 2022-09-13

Total Pages: 786

ISBN-13: 0128239840

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Advances in Food Rheology and Its Applications: Development in Food Rheology, Second Edition presents the latest advances in the measurement and application of food rheology, one of the most important tools for food companies when characterizing ingredients and final products, and a predictor of product performance and consumer acceptance. This second edition provides coverage of new rheological measurement techniques, including ultrasonic measurements of rheological properties of food and NMR approach, and precision in data handling, including coverage of mathematical modeling of rheological properties. As the range of food products has also broadened as a result of consumer demands and preference, this second edition includes a series of new chapters on dairy and plant-based foods. The amalgamation between food texture and sensory attributes will also be addressed. In addition, coverage of the correlation between rheological behavior and modeling of the fluid in a human stomach and food digestion will be assessed. A special focus has given on rheology of gel systems, including, food hydrogels, bigel and organogels. Written for food scientists, food technologists, sensory scientists, and others working in academia and industry, Advances in Food Rheology and Its Applications: Development in Food Rheology, Second Edition will be a welcomed and updated reference. Considers the impact of artificial intelligence and machine vision on rheological characterization and process control Presents ultrasonic measurements of rheological properties of food and NMR approach, and precision in data handling Covers thermodynamic approach of rheology and interfacial rheology Explains various gel systems rheology, including bogels and organogo gels

Non-Newtonian Flow and Applied Rheology

Author: R. P. Chhabra

Publisher: Butterworth-Heinemann

Published: 2011-04-08

Total Pages: 536

ISBN-13: 9780080951607

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This book bridges the gap between the theoretical work of the rheologist, and the practical needs of those who have to design and operate the systems in which these materials are handled or processed. It is an established and important reference for senior level mechanical engineers, chemical and process engineers, as well as any engineer or scientist who needs to study or work with these fluids, including pharmaceutical engineers, mineral processing engineers, medical researchers, water and civil engineers. This new edition covers a considerably broader range of topics than its predecessor, including computational fluid dynamics modelling techniques, liquid/solid flows and applications to areas such as food processing, among others. Written by two of the world's leading experts, this is the only dedicated non-Newtonian flow reference in print. Since first publication significant advances have been made in almost all areas covered in this book, which are incorporated in the new edition, including developments in CFD and computational techniques, velocity profiles in pipes, liquid/solid flows and applications to food processing, and new heat/mass transfer methods and models. Covers both basic rheology and the fluid mechanics of NN fluids - a truly self-contained reference for anyone studying or working with the processing and handling of fluids

Rheology

Author: Giovanni Astarita

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 646

ISBN-13: 1468437437

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At the VIIth International Congress on Rheology, which was held in Goteborg in 1976, Proceedings were for the first time printed in advance and distributed to all participants at the time of the Congress. Although of course we Italians would be foolish to even try to emulate our Swedish friends as far as efficiency of organization is concerned, we decided at the very beginning that, as far as the Proceedings were concerned, the VIIIth International Congress on Rheology in Naples would follow the standards of time liness set by the Swedish Society of Rheology. This book is the result we have obtained. We wish to acknowledge the cooperation of Plenum Press in producing it within the very tight time schedule available. Every four years, the International Congress on Rheology represents the focal point where all rheologists meet, and the state of the art is brought up to date for everybody interested; the Proceedings represent the written record of these milestones of scientific progress in rheology. We have tried to make use of the traditions of having invited lectures, and of leaving to the organizing committee the freedom to choose the lecturers as they see fit, in order to collect a group of invited lectures which gives as broad as possible a landscape of the state of the art in every relevant area of rheology. The seventeen invited lectures are collected in the first volume of the proceedings.

Computational Rheology

Author: Robert G. Owens

Publisher: World Scientific Publishing Company

Published: 2002

Total Pages: 417

ISBN-13: 9781860941863

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This work traces the development of numerical methods for non-Newtonian flows from the late 1960s to 2001. It begins with broad coverage of non-Newtonian fluids, including their mathematical modelling and analysis, and then specific computational techniques are discussed.

Mechanics of Non-Newtonian Fluids

Author: William Raymond Schowalter

Publisher: Pergamon

Published: 1978

Total Pages: 328

ISBN-13:

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Non-Newtonian Flow in the Process Industries

Author: R. P. Chhabra

Publisher: Butterworth-Heinemann

Published: 1999

Total Pages: 453

ISBN-13: 0750637706

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Non-Newtonian fluid behaviour; Rheometry for non-Newtonian fluids; Flow in pipes and conduits of non-circular cross-sections; Flow of multi-phase mixtures in pipes; Particulate systems; Heat transfer characteristics of non-Newtonian fluids in pipes; Momentum, heat and mass transfer in boundary layers; Liquid mixing.