Log in

Relevant bibliographies by topics / Elongational flow / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Elongational flow.

Dissertations / Theses on the topic 'Elongational flow'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 22 dissertations / theses for your research on the topic 'Elongational flow.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Greener, James. "Elongational flow in ceramics processing." Thesis, Brunel University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294511.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Smitter, Luis Manuel. "Study of the interactions between poly(ethylene oxide) and anionic surfactants in elongational flow." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/279813.

Full text

Abstract:

The rheology of polymer solutions is important in a wide variety of applications. In particular, solutions of high-molecular-weight, flexible polymers exhibit an increase in their apparent extensional viscosity with strain rate under extensional flow conditions. This extension thickening is due to formation of transient entanglements of polymer molecules. Certain commercial fluids contain both polymers and surfactants that might interact at the molecular level. These interactions affect the conformation of the polymer chain and, therefore, the rheological behavior of the solution. For instance

APA, Harvard, Vancouver, ISO, and other styles

3

Frascoli, Federico. "Chaotic and rheological properties of liquids under planar shear and elongational flows." Swinburne Research Bank, 2007. http://hdl.handle.net/1959.3/22416.

Full text

Abstract:

Thesis (PhD) - Swinburne University of Technology, Centre for Molecular Simulation - 2007.<br>Dissertation submitted in fulfilment of requirements for the degree Doctor of Philosophy, Centre for Molecular Simulation, Faculty of Information and Communication Technologies, Swinburne University of Technology, 2007. Typescript. Includes bibliographical references (p. 151-161).

APA, Harvard, Vancouver, ISO, and other styles

4

Recktenwald, Steffen Michael [Verfasser], and N. [Akademischer Betreuer] Willenbacher. "Flow Instabilities of Dilute Surfactant Solutions in Elongational Deformations / Steffen Michael Recktenwald ; Betreuer: N. Willenbacher." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1190178834/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hadinata, Chitiur, and chitiurh@yahoo com au. "Flow-induced crystallization of polybutene-1 and effect of molecular parameters." RMIT University. Civil, Environmental and Chemical Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080212.163803.

Full text

Abstract:

There are two main goals of this thesis: to investigate the flow-induced crystallization behaviour of Polybutene-1 (PB-1 samples, and to study the effects of molecular parameters on the crystallization behaviour While flow-induced crystallization is not a new area in polymer research, well-defined experimental methods that allow access to high flow rate range comparable to that encountered in real processing are still lacking. Two types of flow are considered: shear and uniaxial elongational. Regarding the second aim, several molecular parameters considered are: molecular weight, molecular wei

APA, Harvard, Vancouver, ISO, and other styles

6

Georgieva, Kristina [Verfasser], and N. [Akademischer Betreuer] Willenbacher. "Clogging of Microchannels by Nano-particles due to Hetero-coagulation in Elongational Flow / Kristina Georgieva. Betreuer: N. Willenbacher." Karlsruhe : KIT-Bibliothek, 2013. http://d-nb.info/1033837318/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Yu, Wei. "Development of an elongational-flow microprocess for the production of size-controlled nanoemulsions : application to the preparation of composite and hybrid polymeric microparticles." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAE027/document.

Full text

Abstract:

L’objectif de ce travail fut de développer et d’étudier les performances d’un microprocédé basse pression à écoulement élongationnel pour la production de nanoémulsions polymérisables de tailles contrôlées et de distributions de taille étroites. Le diamètre des nanogouttelettes a pu être précisément ajusté dans la gamme 50-300 nm en modifiant simplement les paramètres de procédé : le débit réciproque au travers du micromélangeur, le nombre de cycles et la dimension caractéristique du microcanal. Les nanoémulsions produites furent, dans une seconde étape, polymérisées par voie thermique ou par

APA, Harvard, Vancouver, ISO, and other styles

8

El, Kissi Nadia. "Stabilité des écoulements mixtes de polymères fondus : [thèse en partie soutenue sur un ensemble de travaux]." Grenoble INPG, 1989. http://www.theses.fr/1989INPG0046.

Full text

Abstract:

Etude de fluides silicones. Comportement en cisaillement a l'aide d'un rheometre cone-plan ou capillaire. Existence de deux zones de recirculation en amont de la contraction. Localisation du defaut de peau de requin a la sortie des filieres (rupture par fissuration du fluide). Instabilite de l'ecoulement. Etude de la forme des filieres en filage textile

APA, Harvard, Vancouver, ISO, and other styles

9

Hagen, Thomas Ch. "Elongational Flows in Polymer Processing." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/29437.

Full text

Abstract:

The production of long, thin polymeric fibers is a main objective of the textile industry. Melt-spinning is a particularly simple and effective technique. In this work, we shall discuss the equations of melt-spinning in viscous and viscoelastic flow. These quasilinear hyperbolic equations model the uniaxial extension of a fluid thread before its solidification. We will address the following topics: first we shall prove existence, uniqueness, and regularity of solutions. Our solution strategy will be developed in detail for the viscous case. For non-Newtonian and isothermal flows, we shall ou

APA, Harvard, Vancouver, ISO, and other styles

10

V, Venkataramanan. "Material characterization in elongational flows /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487943610784079.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Souilem, Inès. "Élaboration de miniémulsions dans un nouveau mélangeur à écoulement élongationnel : influence des paramètres du procédé et de la formulation." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00864095.

Full text

Abstract:

Les mini ou nanoémulsions sont des systèmes fréquemment rencontrés dans différents domaines : cosmétique, pharmaceutique, biomédical... Plusieurs procédés permettent la préparation de nanoémulsions. Cependant, ils présentent tous des limitations en termes de taille des gouttelettes, d'énergie de mélange, de rapport de viscosité entre les phases dispersées et continues, de gamme de pression à appliquer... Ce travail s'intéresse au développement d'un nouveau dispositif basé sur un écoulement élongationnel pour l'élaboration de miniémulsions de monomères. La démarche a consisté d'abord à étudier

APA, Harvard, Vancouver, ISO, and other styles

12

Rondin, Jérôme. "Apport des écoulements élongationnels lors de la mise en oeuvre de mélanges PP/EPDM réticulés dynamiquement et chargés à base de graphène." Thesis, Strasbourg, 2012. http://www.theses.fr/2012STRAE046/document.

Full text

Abstract:

Le travail de thèse présenté dans ce manuscrit a consisté à mettre en avant un nouveau procédé de mélange des polymères développé au LIPHT lors de la mise en oeuvre de mélanges PP/EPDM réticulés dynamiquement et chargés à base de graphène. Ce nouveau mélangeur, appelé RMX®, se distingue de la plupart des mélangeurs existants par la présence d’écoulements élongationnels forts, la possibilité de mouler directement des éprouvettes à l’issue de l’étape de mélange ainsi qu’une étanchéité aux gaz et aux liquides. Après une optimisation des conditions opératoires de ce mélangeur, nous avons pu évalue

APA, Harvard, Vancouver, ISO, and other styles

13

Ambari, Abdelhak. "Application des méthodes électrochimiques à l'étude de l'interaction entre l'hydrodynamique et la dynamique des polymères en écoulement élongationnel : interaction entre particules solides en régime de Stokes." Paris 6, 1986. http://www.theses.fr/1986PA066006.

Full text

Abstract:

Dynamique des polymères linéaires et flexibles en écoulement élongationnel. Mise en évidence du changement brutal de la forme pelote à la forme étirée. Deux méthodes de mesure différentes : l'une basée sur la mesure directe de la dissipation viscoélastique, l'autre basée sur les effets de cette transition sur le transfert massique et sur l'hydrodynamique.

APA, Harvard, Vancouver, ISO, and other styles

14

Mestadi, Abdelaziz. "Caractérisation en élongation de polymères fondus et en solution : comparaison entre essais à force constante et à vitesse de déformation constante." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10079.

Full text

Abstract:

Le rappel des principales techniques de mesure des proprietes elongationnelles des materiaux a l'etat fluide montre que l'essai a force constante convient a la fois aux polymeres fondus et en solution. Ce travail porte sur la comparaison entre essais a force constante et essais a vitesse de deformation constante. Pour analyser l'influence du caractere moleculaire lineaire ou branche sur les mesures envisagees, quatre polybutadienes et deux polydimethylsiloxanes fondus a temperature ambiante sont utilises. La caracterisation rheologique de ces materiaux dans le domaine de la viscoelasticite lin

APA, Harvard, Vancouver, ISO, and other styles

15

Cao, Dongbu. "Modeling of nonisothermal channel flows and elongational flows in polymer processes /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu148786297213688.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Gagov, Atanas. "INSTABILITIES IN ELONGATION FLOWS OF POLYMERS AT HIGH DEBORAH NUMBERS." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1191895515.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Araya, Tadashi. "Grain fabrics formed on horizontal to gently inclined sandy erodible beds under unidirectional, oscillatory and combined flows, with special reference to the dependence of imbrication angles on grain elongation and grain size." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147833.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Chiu, Chih-Wei, and 邱智瑋. "Spinning and Elongational Flow Behaviorof Nanoscale TiO2/PP Fibers." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/38752224919974318854.

Full text

Abstract:

碩士<br>逢甲大學<br>紡織工程所<br>92<br>Nano-scale TiO2/Polypropylene fibers are prepared by melt blending with melt spinning process in this study. The elongational viscosity characteristic of polymer effects by the condition of manufacture, it can be measured in spinning process. The particle size, additive amounts of the nano-scale TiO2 particles are varied, and the temperature, volume flow rate and extracted speed tension are the parameters of this experiment. It is directly measured the diameter, tension, and flow rate of fibers, and calculate apparent elongational viscosity and apparent elongationa

APA, Harvard, Vancouver, ISO, and other styles

19

Nieh, Mu-Ping. "Deformation and orientation of dissolved polymer chains in an elongational flow." 1998. https://scholarworks.umass.edu/dissertations/AAI9841901.

Full text

Abstract:

The addition of a low concentration of dissolved high molecular weight polymer can greatly modify the rheological properties of a simple. Many of the modification can be attributed to flow-induced departures of the average chain conformation from its isotropic value at quiescence. The statistical deformation and orientation of polymer chains in flow has been predicted by various molecular models, but these predictions have not been adequately tested. This research provides an important molecular-level understanding of chain conformation in dilute solutions undergoing elongational flow; the wor

APA, Harvard, Vancouver, ISO, and other styles

20

Tsai, Yu-Tien, and 蔡育田. "Polymer Motion in the Elongation Flow." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/40033991863984626249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Borgbjerg, Ulrik. "The recovery of polymer melts after shear and elongational flows." 1994. http://catalog.hathitrust.org/api/volumes/oclc/32776577.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

何誌峰. "Studies of the Effect of Elongation Flow on the Dispersive Mixing Elements For the Single Extrusion Process." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/40105228081848925228.

Full text

Abstract:

碩士<br>國立交通大學<br>應用化學系所<br>93<br>Most scholar and experts formerly put forward dispersive mixing element of the curved flight which generate elongation flow as the main research, but not many of them worked out their essays about dispersive mixing element of the flat flank which is without any gap between the flight and the jacket and the changes which are the length of the pin and the amount of the pins in simulation. The goal of my essay is to use finite element method to simulation high molecular polymer flow in the dispersive mixing elements. With changing the configuration of the pins, th

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!