Log in

Relevant bibliographies by topics / Multiphasic approach / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Multiphasic approach.

Dissertations / Theses on the topic 'Multiphasic approach'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 March 2023

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

Select a source type:

Consult the top 40 dissertations / theses for your research on the topic 'Multiphasic approach.'

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

Newton, Christopher C. "MMPI-A structural summary approach : characteristics of gifted adolecents." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1389691.

Full text

Abstract:

The current study examined the scale-level factor structure of the Minnesota Multiphasic Personality Inventory-Adolescent (MVIPI-A) in a sample of 428 gifted and talented adolescents to validate use of this approach with a gifted population. The MMPIA structural summary was developed to help simplify interpretation of the 69 scales and subscales that are produced with a full administration of this assessment. A principal component analysis was conducted in an attempt to replicate the eight-factor structure identified by Archer, Belevich, and Elkins (1994) in the MMPI-A normative sample and by

APA, Harvard, Vancouver, ISO, and other styles

2

DECONTARDI, SIMONE. "Penicilli e Aspergilli associati al formaggio grana Approccio multifasico all'identificazione, fabbisogni ecologici e produzione di tossine." Doctoral thesis, Università Cattolica del Sacro Cuore, 2017. http://hdl.handle.net/10280/19077.

Full text

Abstract:

Recentemente, l’ocratossina A (OTA) è stata segnalata in formaggio grattugiato confezionato: si ritiene sia stata prodotta dallo sviluppo di alcuni funghi durante il periodo di maturazione. Gli studi presentati in questa tesi hanno avuto lo scopo di migliorare la conoscenza dei funghi, Aspergilli e Penicilli, associati al formaggio di tipo grana. Si è dunque provveduto alla loro identificazione tramite approccio multifasico, eseguendo anche prove ecologiche per definire i fabbisogni delle specie presumibilmente dominanti. Obiettivo finale sarà quello di predire il rischio di contaminazione da

APA, Harvard, Vancouver, ISO, and other styles

3

DECONTARDI, SIMONE. "Penicilli e Aspergilli associati al formaggio grana Approccio multifasico all'identificazione, fabbisogni ecologici e produzione di tossine." Doctoral thesis, Università Cattolica del Sacro Cuore, 2017. http://hdl.handle.net/10280/19077.

Full text

Abstract:

Recentemente, l’ocratossina A (OTA) è stata segnalata in formaggio grattugiato confezionato: si ritiene sia stata prodotta dallo sviluppo di alcuni funghi durante il periodo di maturazione. Gli studi presentati in questa tesi hanno avuto lo scopo di migliorare la conoscenza dei funghi, Aspergilli e Penicilli, associati al formaggio di tipo grana. Si è dunque provveduto alla loro identificazione tramite approccio multifasico, eseguendo anche prove ecologiche per definire i fabbisogni delle specie presumibilmente dominanti. Obiettivo finale sarà quello di predire il rischio di contaminazione da

APA, Harvard, Vancouver, ISO, and other styles

4

Aliaga, Rivera Cristhian Neil. "An unsteady multiphase approach to in-flight icing /." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112552.

Full text

Abstract:

Ice accretion is a purely unsteady phenomenon that is presently approximated by most icing codes using quasi-steady modeling. The accuracy of ice prediction is thus directly related to the arbitrarily prescribed time span during which the impact of ice growth on both flow and droplets is neglected. The objective of this work is to remove this limitation by implementing a cost-effective unsteady approach. This is done by fully coupling, in time, a diphasic flow (interacting air and droplet particles) with the ice accretion model. The two-phase flow is solved using the Navier-Stokes and Eulerian

APA, Harvard, Vancouver, ISO, and other styles

5

NETO, AFONSO PAIVA. "A LAGRANGIAN APPROACH FOR SIMULATING VISCOPLASTIC AND MULTIPHASE FLUIDS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=11074@1.

Full text

Abstract:

PETRÓLEO BRASILEIRO S. A.<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Na última década em Computação Gráfica, foram desenvolvidas várias técnicas de simulação do comportamento de objetos como corpos rígidos, água, fumaça, cabelo e tecido. Enquanto essas técnicas se concentram em modelos físicos simplificados através de fluidos newtonianos monofásicos ou de sólidos ideais, propomos aqui novas técnicas de simulação de fluidos viscoplásticos e multifásicos baseadas numa abordagem lagrangeana da equação de quantidade de movimento. Essas técnicas consistem na discreti

APA, Harvard, Vancouver, ISO, and other styles

6

Li, Xi-Kui. "Multiphase flow in deforming porous media : a finite element approach." Thesis, Swansea University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542610.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Hopkins, Gary. "Growth, modelling and remodelling of cardiac tissue: a multiphase approach." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/24887.

Full text

Abstract:

Rheumatic heart disease (RHD) is identified as a serious health concern in developing countries, specifically amongst young individuals, accounting for between 250 000 and 1.4 million deaths annually. As such, the attention of this research is initially placed on the importance of the development of a cardiac analysis toolbox with functionality for pathophysiological analysis of the disease. Subsequently, in order to further the understanding of the mechanisms of the disease as linked to cardiomyocyte growth and remodelling of the microstructure, a continuum bi-phasic model applicable to cardi

APA, Harvard, Vancouver, ISO, and other styles

8

Nilamdeen, Mohamed Shezad. "An uncoupled multiphase approach towards modeling ice crystals in jet engines." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92185.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Sugrue, Rosemary M. "A robust momentum closure approach for multiphase computational fluid dynamics applications." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113718.

Full text

Abstract:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages [183]-190).<br>Multiphase computational fluid dynamics (M-CFD) modeling approaches allow for the prediction of critical three-dimensional thermal-hydraulics phenomena in nuclear reactor applications. The advancement and consistent adopti

APA, Harvard, Vancouver, ISO, and other styles

10

Lu, Qin. "A parallel multi-block/multi-physics approach for multi-phase flow in porous media /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Vessaire, Jérémy. "Couplages particules/turbulence dans un écoulement tourbillonnaire et fortement ensemencé." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEN074.

Full text

Abstract:

Les écoulements chargés en particules sont omniprésents dans la nature (coulées pyroclastiques, gouttes d'eau dans les nuages ...) et l'industrie (mélangeurs industriels, combustion des gouttelettes de carburants dans un moteur diesel, polluants, etc). Souvent l'écoulement est turbulent et, dans un système réel, les interactions entre les particules et l'écoulement sont complexes de part la nature multi-échelle des structures de la turbulence et les diverses caractéristiques des particules. L'originalité de cette thèse est de se focaliser sur les écoulements très fortement chargés en particule

APA, Harvard, Vancouver, ISO, and other styles

12

Mahdavi, Mostafa. "Study of flow and heat transfer features of nanofluids using multiphase models : eulerian multiphase and discrete Lagrangian approaches." Thesis, University of Pretoria, 2016. http://hdl.handle.net/2263/61309.

Full text

Abstract:

Choosing correct boundary conditions, flow field characteristics and employing right thermal fluid properties can affect the simulation of convection heat transfer using nanofluids. Nanofluids have shown higher heat transfer performance in comparison with conventional heat transfer fluids. The suspension of the nanoparticles in nanofluids creates a larger interaction surface to the volume ratio. Therefore, they can be distributed uniformly to bring about the most effective enhancement of heat transfer without causing a considerable pressure drop. These advantages introduce nanofluids as

APA, Harvard, Vancouver, ISO, and other styles

13

Tun, Zaw Lwin. "Mechanistic Approach to Multiphase Porous Media Modeling with Application of New Stress Principle." Kyoto University, 1999. http://hdl.handle.net/2433/181895.

Full text

Abstract:

Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第7886号<br>農博第1044号<br>新制||農||778(附属図書館)<br>学位論文||H11||N3249(農学部図書室)<br>UT51-99-G480<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授青山咸康, 教授河地利彦, 教授三野徹<br>学位規則第4条第1項該当

APA, Harvard, Vancouver, ISO, and other styles

14

Elkahky, Sherif. "Novel Approach to Predict and Model Asphaltene Precipitation and Deposition in Multiphase Flow." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/82656.

Full text

Abstract:

A novel approach to asphaltenes precipitation and deposition prediction and forecast, applied multiple methods including innovative numerical modeling within multiphase flow. Furthermore, modeled the effect of CO2 injection on asphaltenes precipitation during enhanced oil recovery within the reservoir and wellbore. The parametric effect on asphaltenes deposition of crude oil was modeled and evaluated against previous experimental values. The numerical models and simulations were in good agreement with the steady-state solution of the asphaltenes onset curve.

APA, Harvard, Vancouver, ISO, and other styles

15

Gavagnin, Claudio. "Modeling and computation of cracking in multiphase porous media with the phase-field approach." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3427308.

Full text

Abstract:

The development of mathematical and numerical models for the study of the problem of fracture in porous media is motivated by several real-world applications. In particular, the phase-field approach to fracture, based on the regularization of the variational formulation of the Griffith's theory, seems to be one of the most promising, due to its ability to model complicated fracture processes, such as nucleation and branching, and preserve the continuity of the displacement field. The majority of the phase-field models for fracture in porous media present in the literature are mainly oriented t

APA, Harvard, Vancouver, ISO, and other styles

16

Wan, Man Pun. "Indoor transport of human expiratory droplets in association with airborne infectious disease transmission using a multiphase-flow approach /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20WAN.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Fleau, Solène. "Modélisation des écoulements eau-vapeur « tous régimes d’écoulements » par une approche multi-champ." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1081/document.

Full text

Abstract:

La compréhension des écoulements à bulles dans les centrales nucléaires demeure encore un élément limitant dans l’analyse des opérations et de la sûreté des installations. Pour ne citer qu’un exemple, l’amélioration de la durée de vie etde la performance des générateurs de vapeur nécessite d’appréhender les régimes d’écoulement au sein des tubes qui sont responsables de leur vibration. Cependant, pour simuler avec précision ces écoulements, les codes de simulation numérique doivent relever de nombreux défis parmi lesquels la capacité à simuler des inclusions ayant des tailles très variées. Dan

APA, Harvard, Vancouver, ISO, and other styles

18

Haeri, S. "Hierarchical modelling of multiphase flows using fully resolved fixed mesh and PDF approaches." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/348830/.

Full text

Abstract:

Fully–resolved simulations of multiphase flow phenomena and in particular particulate flow simulations are computationally expensive and are only feasible on massively parallel computer clusters. A 3D SIMPLE type pressure correction algorithm is implemented and extensively tested and parallelized to exploit the power of massively parallel computing clusters currently available. Domain decomposition and communication schemes applicable to a general unstructured or structured multi–block CFD codes are discussed and algorithms are proposed, implemented and tested. Several high–performance linear

APA, Harvard, Vancouver, ISO, and other styles

19

Djebali, Ridha. "Simulation et modélisation des transferts dans les milieux multiphases et multiconstituants par une approche Boltzmann sur réseau." Limoges, 2011. https://aurore.unilim.fr/theses/nxfile/default/0c924101-f7db-4449-a0c9-7465ccfd34ec/blobholder:0/2011LIMO4035.pdf.

Full text

Abstract:

Ces travaux de thèse portent sur l'étude du procédé de projection par plasma d'arc soufflé par l'approche Boltzmann sur réseau, LBM. Un modèle LBM axisymétrique turbulent a été développé, et a servi à la simulation d'un jet de plasma d'argon pure et d'un mélange d'argon-azote. Les résultats qui en découlent sont en excellent accord avec les résultats expérimentaux et numériques de références. Une formulation Lagrangiènne a été adoptée pour l'étude du phénomène de transport de particules eu projection et des transferts plasma-particules durant leurs séjours dans le gaz chaud. La validation, bas

APA, Harvard, Vancouver, ISO, and other styles

20

Krimi, Abdelkader. "Modélisation des écoulements fluide multiphasiques avec une approche SPH." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0004/document.

Full text

Abstract:

La méthode Smoothed Particle Hydrodynamics (SPH) est une méthode lagrangienne, sans maillage développée initialement pour des simulations de phénomènes astrophysiques. Depuis, elle a connu de nombreuses applications, notamment pour la simulation des écoulements des fluides. Contrairement aux méthodes utilisant un maillage, la méthode SPH peut gérer de manière naturelle et sans traitement spécifique les simulations des écoulements à sur- face libre et multiphasiques avec interface subissant de grandes déformations. Dans cette thèse, une modélisation SPH des écoulements des fluides multiphasique

APA, Harvard, Vancouver, ISO, and other styles

21

Heyns, Johan Adam. "Formulation of a weakly compressible two-fluid flow solver and the development of a compressive surface capturing scheme using the volume-of-fluid approach." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71934.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2012<br>ENGLISH ABSTRACT: This study presents the development and extension of free-surface modelling techniques for the purpose of modelling two-fluid systems accurately and efficiently. The volume-of-fluid (VOF) method is extended in two ways: Firstly, it is extended to account for variations in the gas density through a weakly compressible formulation. Secondly, a compressive free-surface interface capturing formulation that preserves the integrity of the interface shape is detailed. These formulations were implemented and evaluated using the El

APA, Harvard, Vancouver, ISO, and other styles

22

Carrier, Odile. "De la formation de gouttelettes à l'émulsification : approche expérimentale à micro-échelle." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0126/document.

Full text

Abstract:

Ce travail s'est intéressé à l?étude de la formation de gouttelettes en microsystèmes à l'aide d'outils de visualisation tels que des caméras rapides et la microvélocimétrie par image de particules (µPIV). La taille des gouttelettes principales et satellites formées en jonction flow-focusing est déterminée pour des fluides newtoniens et non-newtoniens. Les mêmes paramètres critiques sont mis en évidence pour ces jonctions flow-focusing et des jonctions T, illustrant l'influence du confinement sur la formation des gouttelettes. L'évolution de la taille des gouttelettes satellites dépend quant à

APA, Harvard, Vancouver, ISO, and other styles

23

Pham, Vu Thu. "Mixed Velocity-Displacement Formulation for Modeling of Complex Behavior of Polymer." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00679883.

Full text

Abstract:

This work concerns the simulation of viscoelastic behavior of polymer at different states. Viscoelastic modeling of polymer was performed from the solid state to the liquid state via a multiphase approach which is largely used to deal with the fluid structure interaction. To ensure the appreciation of the FSI, viscoelasticity is considered in two parts: an elastic one and viscous other where the main idea is to use a mixed formulation in three fields (u, v, p) (displacement, velocity, pressure), with u and v, represented the primary variables of a strain and a strain rate formulation. We are l

APA, Harvard, Vancouver, ISO, and other styles

24

Fritz, Jochen [Verfasser]. "A decoupled model for compositional non-isothermal multiphase flow in porous media and multiphysics approaches for two-phase flow / von Jochen Fritz." Stuttgart : Inst. für Wasserbau, 2010. http://d-nb.info/1007183225/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Abhishek, Lakshman Pillai. "Numerical Investigation of Combustion Noise of Turbulent Flames." Kyoto University, 2018. http://hdl.handle.net/2433/232033.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Mohamed-Saïd, Maalek. "Modélisation du rôle des produits de corrosion sur l'évolution de la vitesse de corrosion des aciers au carbone en milieu désaéré et carbonaté." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK002.

Full text

Abstract:

Cette thèse s’inscrit dans le contexte de la durabilité des structures en acier au carbone envisagées pour le stockage des déchets radioactifs à haute activité et à vie longue. Ce travail porte plus particulièrement sur la simulation numérique de la corrosion généralisée (et de son évolution), principale forme de corrosion susceptible d’affecter ces aciers en phase aqueuse et en condition désaérée.Le processus de corrosion des aciers au carbone est grandement influencé par la formation de couches de produits de corrosion (CPC) dont le rôle sur l’évolution de la vitesse de corrosion a été mis e

APA, Harvard, Vancouver, ISO, and other styles

27

Pantelidi, Irene C. "The evaluation of a cognitive behavioural treatment protocol on perfectionism & low self-esteem amongst clients with mood and anxiety disorders : an interpretative phenomenological approach." Thesis, University of Derby, 2015. http://hdl.handle.net/10545/337575.

Full text

Abstract:

Perfectionism can be constructed as a trans diagnostic concept that co exists and probably contributes to the onset development and maintenance of a number of Axis 1 disorders. There is also a significant relationship between perfectionism and low self- esteem. There is considerable theoretical debate in the literature concerning whether perfectionism is uni or multi-dimensional with most therapies being based upon uni dimensional conceptualisations and thus overlooking interpersonal factors. This is also reflected in the relative absence of qualitative studies that explore perfectionism from

APA, Harvard, Vancouver, ISO, and other styles

28

Keita, Namamoudou Sidiki. "Étude de la dispersion de nanoparticules dans le sillage d’obstacles : cas d’un véhicule automobile." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0205/document.

Full text

Abstract:

Dans cette thèse, l’étude des interactions entre des particules ultrafines émises par les pots d’échappement et l’écoulement de sillage créé par le véhicule émetteur a été réalisée principalement selon une approche numérique. Une campagne expérimentale a été conduite à des fins de validation. L’objet de la thèse vise à comprendre l’impact des particules issues des pots d’échappement sur l’environnement proche tant du côté piéton que du côté des passagers des véhicules suiveurs. Pour cela, l’écoulement du fluide a été traité avec une approche eulérienne type URANS (Unsteady Reynolds Average Nav

APA, Harvard, Vancouver, ISO, and other styles

29

Abbaspour, Nima. "Approche numérique et expérimentale des écoulements au sein des piles à combustible : innovations liées aux conditions aux limites." Thesis, Avignon, 2020. http://www.theses.fr/2020AVIG0507.

Full text

Abstract:

La présente thèse fait partie d’un projet destiné à améliorer l’eﬃcacité et la stabilité des piles à combustible à membrane à échange de protons. Elle présente des expériences et des simulations visant à faire évoluer en ce sens la géométrie de canaux véhiculant des ﬂuides à travers les plaques bipolaires à l’anode et à la cathode. En eﬀet, l’electricité produite dépend en particulier d’écoulements diphasiques couplés avec divers phénomènes physiques et très impactés par les forces interfaciales sur les surfaces solides qui les limitent. Nous avons utilisé des codes indutriels ainsi que la mét

APA, Harvard, Vancouver, ISO, and other styles

30

Id, Moulay Mohamed. "Simulation numérique 3D d'Écoulement Multiphasiques Réactifs en Milieux Poreux." Thesis, Pau, 2019. http://www.theses.fr/2019PAUU3015.

Full text

Abstract:

La modélisation du transport réactif est utilisée dans de nombreuses applications énergétiques et environnementales liées aux écoulements souterrains. La modélisation de tels problèmes conduit à un système hautement non linéaire d'EDP couplées à des équations différentielles ordinaires ou algébriques. Deux types d'approches pour la résolution numérique des problèmes de transport réactif sont largement utilisés dans la littérature. L'une est l'approche de séparation des opérateurs qui consiste à découpler les problèmes d'écoulement et de transport réactif. Ces derniers sont résolus séquentielle

APA, Harvard, Vancouver, ISO, and other styles

31

Schneider, Helfried, Thomas Frank, Klaus Pachler, and Klaus Bernert. "A Numerical Study of the Gas-Particle Flow in Pipework and Flow Splitting Devices of Coal-Fired Power Plant." Universitätsbibliothek Chemnitz, 2002. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200200348.

Full text

Abstract:

In power plants using large utility coal-fired boilers for generation of electricity the coal is pulverised in coal mills and then it has to be pneumatically transported and distributed to a larger number of burners (e.g. 30-40) circumferentially arranged in several rows around the burning chamber of the boiler. Besides the large pipework flow splitting devices are necessary for distribution of an equal amount of pulverised fuel (PF) to each of the burners. So called trifurcators (without inner fittings or guiding vanes) and ''riffle'' type bifurcators are commonly used to split the gas-coal p

APA, Harvard, Vancouver, ISO, and other styles

32

Pachler, Klaus, Thomas Frank, and Klaus Bernert. "Simulation of Unsteady Gas-Particle Flows including Two-way and Four-way Coupling on a MIMD Computer Architectur." Universitätsbibliothek Chemnitz, 2002. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200200352.

Full text

Abstract:

The transport or the separation of solid particles or droplets suspended in a fluid flow is a common task in mechanical and process engineering. To improve machinery and physical processes (e.g. for coal combustion, reduction of NO_x and soot) an optimization of complex phenomena by simulation applying the fundamental conservation equations is required. Fluid-particle flows are characterized by the ratio of density of the two phases gamma=rho_P/rho_F, by the Stokes number St=tau_P/tau_F and by the loading in terms of void and mass fraction. Those numbers (Stokes number, gamma) define the f

APA, Harvard, Vancouver, ISO, and other styles

33

Denèfle, Romain. "Modélisation locale diphasique eau-vapeur des écoulements dans les générateurs de vapeur." Phd thesis, Bordeaux 1, 2013. http://tel.archives-ouvertes.fr/tel-00919838.

Full text

Abstract:

Cette travail de thèse est lié au besoin de modélisation des écoulements diphasiques en générateurs de vapeur (entrée liquide et sortie vapeur). La démarche proposée consiste à faire le choix d'une modélisation hybride de l'écoulement, en scindant la phase gaz en deux champs, modélisés de manières différentes. Ainsi, les petites bulles sphériques sont modélisées avec une approche dispersée classique avec le modèle eulérien à deux fluides, et les bulles déformées sont simulées à l'aide d'une méthode de localisation d'interface. Le travail effectué porte sur la mise en place, la vérification et

APA, Harvard, Vancouver, ISO, and other styles

34

Gracka, Maria. "Modelling and analysis of the blood flow using multiphase approach." Rozprawa doktorska, 2021. https://repolis.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=73060.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Gracka, Maria. "Modelling and analysis of the blood flow using multiphase approach." Rozprawa doktorska, 2021. https://delibra.bg.polsl.pl/dlibra/docmetadata?showContent=true&id=73060.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Lee, Sang Ick. "Development of Approach to Estimate Volume Fraction of Multiphase Material Using Dielectrics." 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7578.

Full text

Abstract:

Most engineering as well as pavement materials are composites composed of two or more components to obtain a variety of solid properties to support internal and external loading. The composite materials rely on physical or chemical properties and volume fraction of each component. While the properties can be identified easily, the volume fraction is hard to be estimated due to the volumetric variation during the performance in the field. Various test procedures have been developed to measure the volume fractions; however, they depend on subjective determination and judgment. As an alternative,

APA, Harvard, Vancouver, ISO, and other styles

37

Chen, Tzu-Yun, and 陳子畇. "Transfer Behaviors of PCDD/Fs in the Multiphases Environment by the Fugacity Approach." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/25101919647377673353.

Full text

Abstract:

碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>97<br>Since the development of civilization, there has been growing concern about contamination of the environment by the anthropogenic chemicals. The most important category compound which draws a lot of attention by the environmental scientists are Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) during the past decade. These toxic compounds are nonpolar, lipophilic, and chemically stable. Their toxicity varies considerably depending on the exact positions of the chlorine atoms on the rings. Of the 210 possible PCDD/F congeners, only 17, the 2,3,7,

APA, Harvard, Vancouver, ISO, and other styles

38

Liu, Ju. "Thermodynamically consistent modeling and simulation of multiphase flows." Thesis, 2014. http://hdl.handle.net/2152/28353.

Full text

Abstract:

Multiphase flow is a familiar phenomenon from daily life and occupies an important role in physics, engineering, and medicine. The understanding of multiphase flows relies largely on the theory of interfaces, which is not well understood in many cases. To date, the Navier-Stokes-Korteweg equations and the Cahn-Hilliard equation have represented two major branches of phase-field modeling. The Navier-Stokes-Korteweg equations describe a single component fluid material with multiple states of matter, e.g., water and water vapor; the Cahn-Hilliard type models describe multi-component materials wit

APA, Harvard, Vancouver, ISO, and other styles

39

Franz, Gérald. "Prédiction de la limite de formabilité des aciers multiphasés par une approche micromécanique." Phd thesis, 2008. http://pastel.archives-ouvertes.fr/pastel-00004332.

Full text

Abstract:

Cette thèse a pour objectif d'élaborer un outil de prédiction de la perte de ductilité d'aciers multiphasés polycristallins soumis à des chargements monotones et séquentiels. Cet outil présente également l'intérêt d'aider à l'élaboration de nouveaux matériaux grâce à la connaissance de l'influence de différents paramètres physiques et microstructuraux sur la limite de ductilité. Dans un premier temps, le comportement élastoplastique à l'échelle locale, c'est-à-dire du grain, est modélisé par une loi micromécanique formulée dans le cadre des grandes déformations. Une loi de régularisation, insp

APA, Harvard, Vancouver, ISO, and other styles

40

Id, Moulay Mohamed. "Simulation numérique 3D d'Écoulement Multiphysiques Réactifs en Milieux Poreux." Thesis, 2019. http://www.theses.fr/2019PAUU3015.

Full text

Abstract:

La modélisation du transport réactif est utilisée dans de nombreuses applications énergétiques et environnementales liées aux écoulements souterrains. La modélisation de tels problèmes conduit à un système hautement non linéaire d'EDP couplées à des équations différentielles ordinaires ou algébriques. Deux types d'approches pour la résolution numérique des problèmes de transport réactif sont largement utilisés dans la littérature. L'une est l'approche de séparation des opérateurs qui consiste à découpler les problèmes d'écoulement et de transport réactif. Ces derniers sont résolus séquentielle

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!