Rheological and Rheo-optical Studies of Melt Flow Instabilities PDF Download
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Author: Justin Robert Barone
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
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Author: Justin Robert Barone
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
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Book Description
Author: G. Vallet W. Meskat
Publisher: Steinkopff
ISBN: 9783798504240
Category : Science
Languages : en
Pages : 0
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Author:
Publisher: iSmithers Rapra Publishing
ISBN: 9781859571484
Category : Fluid dynamics
Languages : en
Pages : 86
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Book Description
Author: D.V. Boger
Publisher: Elsevier
ISBN: 044460068X
Category : Science
Languages : en
Pages : 167
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Book Description
More than possibly any other scientific discipline, rheology is easily visualized and the relevant literature contains many excellent photographs of unusual and often bizarre phenomena. The present book brings together these photographs for the first time. They are supported by a full explanatory text. Rheological Phenomena in Focus will be an indispensable support manual to all those who teach rheology or have to convince colleagues of the practical relevance of the subject within an industrial setting. For those who teach fluid mechanics, the book clearly illustrates the difference between inelastic fluids and viscoelastic fluids in a number of important flow fields. For example, the influence of the configuration of molecules in an entry flow, the influence of rounding corners, the reluctance of elastic liquids to turn corners, and the sensitivity of elastic fluids to asymmetries in the flow are clearly illustrated. In addition many flow instabilities, where fluid elasticity is clearly the dominant variable, are shown.
Author: Christopher Klein
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832519882
Category : Science
Languages : en
Pages : 249
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Book Description
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.
Author: International Congress on Rheology
Publisher:
ISBN:
Category : Rheology
Languages : de
Pages : 590
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Author:
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 858
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Book Description
Includes abstracts from the Journal of the Society of Rheology, Japan.
Author: Giovanni Astarita
Publisher: Springer Science & Business Media
ISBN: 1468437437
Category : Science
Languages : en
Pages : 646
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 984
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Author:
Publisher:
ISBN:
Category : Rheology
Languages : en
Pages : 302
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