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Dissertations / Theses on the topic 'The method of numerical simulation'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Vuta, Ravi K. "Numerical simulation of moving boundary problem." Link to electronic thesis, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-050407-082551/.

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2

Xiao, Yong. "Efficient numerical method for micromagnetic simulation and application /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MATH%202006%20XIAO.

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3

Zheng, Yu. "Numerical simulation of droplet deformation using spectral element method." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54648/.

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Spectral element methods are developed for solving two-phase flow problems of relevance to the power generation industry. In particular, an algorithm is presented for predicting the deformation of a Newtonian droplet accelerating from rest in a gas flow field. The dimensionless governing equations are written in terms of four dimensionless groups: Reynolds number, Weber number, and the viscosity and density ratios of the two fluids. The arbitrary Lagrangian-Eulerian (ALE) formulation is used to account for the movement of the mesh. Spectral element approximations are used to ensure a high degr

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4

Karaismail, Ertan. "Numerical Simulation Of Radiating Flows." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606452/index.pdf.

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Predictive accuracy of the previously developed coupled code for the solution of the time-dependent Navier-Stokes equations in conjunction with the radiative transfer equation was first assessed by applying it to the prediction of thermally radiating, hydrodynamically developed laminar pipe flow for which the numerical solution had been reported in the literature. The effect of radiation on flow and temperature fields was demonstrated for different values of conduction to radiation ratio. It was found that the steady-state temperature predictions of the code agree well with the benchmark solut

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5

Qin, Shanlin. "Fractional order models: Numerical simulation and application to medical imaging." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/115108/1/115108_9066888_shanlin_qin_thesis.pdf.

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This thesis is primarily concerned with developing new models and numerical methods based on the fractional generalisation of the Bloch and Bloch-Torrey equations to account for anomalous MRI signal attenuation. The two main contributions of the research are to investigate the anomalous evolution of MRI signals via the fractionalised Bloch equations, and to develop new effective numerical methods with supporting analysis to solve the time-space fractional Bloch-Torrey equations.

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6

Tarhan, Tanil. "Numerical Simulation Of Laminar Reacting Flows." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12605307/index.pdf.

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Novel sequential and parallel computational fluid dynamic (CFD) codes based on method of lines (MOL) approach were developed for the numerical simulation of multi-component reacting flows using detailed transport and thermodynamic models. Both codes were applied to the prediction of a confined axisymmetric laminar co-flowing methane-air diffusion flame for which experimental data were available in the literature. Flame-sheet model for infinite-rate chemistry and one-, two-, and five- and ten-step reduced finite-rate reaction mechanisms were employed for methane-air combustion sub-model. A seco

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7

Allena, Rachele. "Numerical simulation of morphogenetic movements in Drosophila embryo." Phd thesis, Ecole Centrale Paris, 2009. http://tel.archives-ouvertes.fr/tel-00429691.

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The present thesis is developed through four principal chapters. The first one provides a brief but rather exhaustive description of the context, with a global overview on the complex process of the embryogenesis in Drosophila Melanogaster. We amply focus on the three morphogenetic movements that will be numerically simulated, with particular emphasis on both the mechanical and the biological aspects that constitute the main peculiarity of each event. Also we propose a short review on the related previous works. The second chapter supplies the abstract tools for the analysis of the whole probl

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8

Jalisi, Ismail Scheryar Zafar. "A numerical method for the simulation of rough elastomeric contact." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406305.

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9

Ren, Qinlong. "Numerical Simulation of 2D Electrothermal Flow Using Boundary Element Method." Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/312496.

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Microfluidics and its applications to Lab-on-a-Chip have attracted a lot of attention. Because of the small length scale, the flow is characterized by a low Re number. The governing equations become linear. Boundary element method (BEM) is a very good option for simulating the fluid flow with high accuracy. In this thesis, we present a 2D numerical simulation of the electrothermal flow using BEM. In electrothermal flow the volumetric force is caused by electric field and temperature gradient. The physics is mathematically modeled by (i) Laplace equation for the electrical potential, (ii) Poiss

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10

Riljak, Stanislav. "Numerical simulation of shape rolling." Licentiate thesis, Stockholm, 2006. http://www.diva-portal.org/kth/theses/abstract.xsql?dbid=3963.

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11

Hahm, Jungyoon. "Numerical simulation of electrokinetically driven micro flows." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2594.

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Spectral element based numerical solvers are developed to simulate electrokinetically driven flows for micro-fluidic applications. Based on these numerical solvers, basic phenomena and devices for electrokinetic applications in micro and nano flows are systematically studied. As a first application, flow and species transport control in a grooved micro-channel using local electrokinetic forces are studied. Locally applied electric fields, zeta potential patterned grooved surfaces, and geometry are manipulated to control mixed electroosmotic/pressure driven flow in the grooved micro-channel. Th

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12

Shyshko, Sergiy. "Numerical simulation of the rheological behavior of fresh concrete." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-131751.

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This thesis reports recent numerical investigation of the rheological behavior of fresh concrete using the Distinct Element Method (DEM). Some relevant questions of the concrete rheology e.g. the influence of the concrete composition on the rheological behavior of the fresh concrete, the experimental determination of the Bingham rheological constants as well as the use of these constants in the numerical simulation were discussed thoroughly. An important topic of the performed investigation was the development of the numerical model for fresh concrete which enables simple, fast and stable pred

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13

Tugluk, Ozan. "Direct Numerical Simulation Of Pipe Flow Using A Solenoidal Spectral Method." Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614293/index.pdf.

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In this study, which is numerical in nature, direct numerical simulation (DNS) of the pipe flow is performed. For the DNS a solenoidal spectral method is employed, this involves the expansion of the velocity using divergence free functions which also satisfy the prescribed boundary conditions, and a subsequent projection of the N-S equations onto the corresponding dual space. The solenoidal functions are formulated in Legendre polynomial space, which results in more favorable forms for the inner product integrals arising from the Petrov-Galerkin scheme employed. The developed numerical scheme

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14

Terdalkar, Rahul J. "Direct numerical simulation of swirling flows using the front tracking method." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-122007-233351/.

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15

Brooke, Matthew. "Numerical simulation of guitar radiation fields using the boundary element method." Thesis, Cardiff University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311465.

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16

Hull, Thomas Hamilton. "Numerical simulation of semiconductor devices using the finite box discretisation method." Thesis, Queen's University Belfast, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317094.

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17

BARBOSA, JAIME ANDRES CASTANEDA. "NUMERICAL SIMULATION OF HYDRAULIC FRACTURING BY THE EXTENDED FINITE ELEMENT METHOD." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=31482@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Um dos principais objetivos da engenharia de petróleo é desenvolver e aplicar técnicas capazes de aumentar a produtividade de poços de petróleo, incluindo a estimulação do poço por operações de fraturamento hidráulico. Estudos sobre a propagação de fraturas podem ser feitos analiticamente para algumas situações simplificadas envolvendo homogeneidade, isotropia e condições de contorno simples do meio geológico, ou pela aplicação de métodos numéricos, como o método dos elementos

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18

Wessel, Richard Allen Jr. "Spectral element method for numerical simulation of unsteady laminar diffusion flames." Case Western Reserve University School of Graduate Studies / OhioLINK, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=case1057076472.

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19

Long, Tian. "Modeling and Numerical Simulation Method for Multiphase Flow with Phase Change." Electronic Thesis or Diss., Sorbonne université, 2025. http://www.theses.fr/2025SORUS012.

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Les écoulements multiphasiques avec changement de phase sont courants dans les processus naturels et les applications industrielles. Une compréhension plus approfondie des transferts de masse et de chaleur sous-jacents est bénéfique pour faire avancer les technologies associées. Ces dernières années, avec le développement rapide des ordinateurs haute performance, la simulation numérique est devenue un outil important pour étudier les flux de changement de phase en raison de sa flexibilité et de sa capacité à fournir des informations physiques complètes. Cependant, en raison de sa complexité in

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20

Boyaval, Sébastien. "Mathematical modelling and numerical simulation in materials science." Phd thesis, Université Paris-Est, 2009. http://tel.archives-ouvertes.fr/tel-00499254.

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In a first part, we study numerical schemes using the finite-element method to discretize the Oldroyd-B system of equations, modelling a viscoelastic fluid under no flow boundary condition in a 2- or 3- dimensional bounded domain. The goal is to get schemes which are stable in the sense that they dissipate a free-energy, mimicking that way thermodynamical properties of dissipation similar to those actually identified for smooth solutions of the continuous model. This study adds to numerous previous ones about the instabilities observed in the numerical simulations of viscoelastic fluids (in pa

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21

Lear, Matthew Houck. "Numerical Simulation of Adiabatic Shear Bands and Crack Propagation in Thermoviscoplastic Materials." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/27196.

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Plane strain deformations of an elastoplastic material are studied using numerical methods. In the first chapter, a meshless formulation of the static small strain elastic-plastic problem is formulated using the meshless local Petrov-Galerkin method. The code is validated against the small strain plasticity routines in the commercial finite element code ABAQUS for two basic configurations with loading, unloading, and reloading. The results are found to agree within 5%. The validated code is then used to analyze the stress intensity factor (SIF) in a double edge-cracked plate. Deformations of t

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22

Quirynen, Rien [Verfasser], and Moritz [Akademischer Betreuer] Diehl. "Numerical simulation methods for embedded optimization." Freiburg : Universität, 2017. http://d-nb.info/112590626X/34.

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23

De, Mier Torrecilla Monica. "Numerical simulation of multi-fluid flows with the Particle Finite Element Method." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/6872.

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La presencia simultánea de múltiples fluidos con diferentes propiedades ocurre en numerosos problemas medioambientales, procesos industriales y situaciones de la vida diaria. Algunos ejemplos son la interacción fluido-combustible en la extracción mejorada de petróleo, mezcla de polímeros, emulsiones en productos alimentarios, formación de gotas de lluvia en nubes, inyección en motores de combustión o reactores de columna de burbujas. A pesar de que los flujos de multi-fluidos son muy frecuentes, todavía suponen un reto tanto desde el punto de vista teórico como computacional. En el caso de flu

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24

Meneghini, Julio Romano. "Numerical simulation of bluff body flow control using a discrete vortex method." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/8441.

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25

Rahdar, Mehrdad. "Numerical simulation of natural convection in cavities using the finite analytic method." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/MQ39694.pdf.

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26

Stiernström, Vidar. "Numerical simulation of the Dynamic Beam Equation using the SBP-SAT method." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-227121.

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A stable boundary treatment of the dynamic beam equation (DBE) with two different sets of boundary conditions has been conducted using the summation-by-parts-simultaneous-approximation-term (SBP-SAT) method. As the DBE involves a fourth derivative in space the numerical boundary treatment is highly non-trivial. Using SBP-SAT operators together with suitable time integration schemes the DBE has been simulated and a convergence study has been made. The results show that the SBP-SAT method produces a stable discretistation that is accurate enough to capture the dispersive nature of the dynamic be

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27

Yu, Zhao. "A Novel Lattice Boltzmann Method for Direct Numerical Simulation of Multiphase Flows." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259466323.

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28

Ugail, Hassan, N. Jamil, and R. Satinoianu. "Method of numerical simulation of stable structures of fluid membranes and vesicles." WSEAS, 2006. http://hdl.handle.net/10454/2751.

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29

Hamid, Adnan. "Direct Numerical Simulation Studies of Sedimentation of Spherical Particles." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188621.

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30

De, Ponte Candice Natasha. "Pricing barrier options with numerical methods / Candice Natasha de Ponte." Thesis, North-West University, 2013. http://hdl.handle.net/10394/8672.

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Barrier options are becoming more popular, mainly due to the reduced cost to hold a barrier option when compared to holding a standard call/put options, but exotic options are difficult to price since the payoff functions depend on the whole path of the underlying process, rather than on its value at a specific time instant. It is a path dependent option, which implies that the payoff depends on the path followed by the price of the underlying asset, meaning that barrier options prices are especially sensitive to volatility. For basic exchange traded options, analytical prices, based on the Bl

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31

Mabogo, Mbavhalelo. "Development of techniques using finite element and meshless methods for the simulation of piercing." Thesis, [S.l. : s.n.], 2009. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1056&context=td_cput.

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32

Nguyen, Anh Khoa. "Self-organized gradient percolation method for numerical simulation of impregnation in porous media." Thesis, Orléans, 2019. http://www.theses.fr/2019ORLE3004.

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La modélisation numérique du phénomène d’imprégnation dans les milieux poreux a une très large gamme d’applications. Le développement d’un modèle doit tenir compte de la complexité multiphysique du problème afin de rester fidèle à la physique du phénomène. Dans le cadre de cette thèse, nous proposons un modèle numérique pour la prédiction de l’évolution de l‘imprégnation non-réactive quasi-unidimensionnelle et en particulier de sa courbe de succion capillaire. Ce modèle est basé sur une approche purement probabiliste, avec des paramètres liés aux lois physiques régissant le procédé d’imprégnat

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33

Wang, Shuang. "A volumetric mesh-free deformation method for surgical simulation in virtual environments." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 78 p, 2009. http://proquest.umi.com/pqdweb?did=1885755951&sid=3&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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34

Zhang, Yan. "Weakly first-order phase transitions : [epsilon] expansion vs. numerical simulation /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/9715.

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35

Shen, Hong. "Non-deterministic analysis of slope stability based on numerical simulation." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2012. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-96370.

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In geotechnical engineering, the uncertainties such as the variability and uncertainty inherent in the geotechnical properties have caught more and more attentions from researchers and engineers. They have found that a single “Factor of Safety” calculated by traditional deterministic analyses methods can not represent the slope stability exactly. Recently in order to provide a more rational mathematical framework to incorporate different types of uncertainties in the slope stability estimation, reliability analyses and non-deterministic methods, which include probabilistic and non probabilisti

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36

Ahmad, Nadiah. "Riser Feeding Evaluation Method for Metal Castings Using Numerical Analysis." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1447845668.

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37

Price, Glenn Robert. "A piecewise parabolic volume tracking method for the numerical simulation of interfacial flows." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ64835.pdf.

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38

Jin, Wenjie. "Numerical Simulation of Wind Turbine Wakes based on Actuator Line Method in NEK5000." Thesis, KTH, Mekanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118925.

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Nowadays wind turbines are clustered in wind farms and the wake development plays an important role in energy production and blade fatigue load of tubines. The actuator line method is an effective modeling approach that gives improtant wake flow characterstics of a wind turbine. In the last few years, numerous studies have been conducted based on this method using Ellipsys3D, a computational fluid dynamics (CDF) flow solver based on finitie volume approach. However, due to the limited order of accuracy of this solver, it is not capable of a linear stability analysis with small amplitude of per

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39

YAGAMI, Hisanori, and Tomomi UCHIYAMA. "Numerical Simulation of Particle-Laden Plane Mixing Layer by Three-Dimensional Vortex Method." The Japan Society of Mechanical Engineers, 2006. http://hdl.handle.net/2237/9219.

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40

Tristanto, Indi Himawan. "A mesh transparent numerical method for large-eddy simulation of compressible turbulent flows." Thesis, Loughborough University, 2004. https://dspace.lboro.ac.uk/2134/12128.

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A Large Eddy-Simulation code, based on a mesh transparent algorithm, for hybrid unstructured meshes is presented to deal with complex geometries that are often found in engineering flow problems. While tetrahedral elements are very effective in dealing with complex geometry, excessive numerical diffusion often affects results. Thus, prismatic or hexahedral elements are preferable in regions where turbulence structures are important. A second order reconstruction methodology is used since an investigation of a higher order method based upon Lele's compact scheme has shown this to be impractical

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41

Pasquini, Enrico, Heiko Baum, Bebber David van, and Denis Pendovski. "Numerical Simulation of Transient Diabatic Pipe Flow by using the Method of Characteristics." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199881.

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The following paper presents a one-dimensional numerical model for simulating transient thermohydraulic pipe flow based on the Method of Characteristics. In addition to mass and momentum conservation, the proposed scheme also guarantees compliance with the laws of thermodynamics by solving the energy equation. The model covers transient changes in fluid properties due to pressure changes, heat transfer and dissipation. The presented methodology also allows the computation of the transient temperature distribution in the pipe wall through an additional ordinary finite difference scheme. The num

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42

Jones, Richard Graham. "Numerical methods for problems in reservoir simulation." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47493.

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43

Lloyd, Jennifer A. "Numerical methods for Monte Carlo device simulation." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12766.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992.<br>Includes bibliographical references (leaves 51-53).<br>by Jennifer Anne Lloyd.<br>M.S.

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44

Pauthenet, Martin. "Macroscopic model and numerical simulation of elastic canopy flows." Thesis, Toulouse, INPT, 2018. http://www.theses.fr/2018INPT0072/document.

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On étudie l'écoulement turbulent d'un fluide sur une canopée, que l'on modélise comme un milieu poreux déformable. Ce milieu poreux est en fait composé d'un tapis de fibres susceptibles de se courber sous la charge hydrodynamique du fluide, et ainsi de créer un couplage fluide-structure à l'échelle d'une hauteur de fibre (honami). L'objectif de la thèse est de développer un modèle macroscopique de cette interaction fluide-structure, afin d'en réaliser des simulations numériques. Une approche numérique de simulation aux grandes échelles est donc mise en place pour capturer les grandes structure

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45

Coates, Tim. "Numerical simulation of unconventional aero-engine exhaust systems for aircraft." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16365.

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This thesis investigates the impact of upstream duct convolution on the plume development for high speed jets. In particular, investigations are carried out into an unconventional aero-engine exhaust systems comprised of a modified convergent-divergent rectangular nozzle where the converging section of the nozzle includes an S-bend in the duct. The motivation for this work comes from both the military and civilian sectors of the aerospace industry. The growing interest into highly efficient engines in the civilian sector and increasing complexities involved in stealth technologies for military

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46

Mitchell, Colin Raymond. "Numerical Simulation of Calcium Carbonate Formation." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1294360826.

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47

Pasdunkorale, Arachchige Jayantha. "Accurate finite volume methods for the numerical simulation of transport in highly anistropic media." Thesis, Queensland University of Technology, 2003.

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48

Kara, Sibel. "Numerical simulation of flow in open-channels with hydraulic structures." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54033.

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Extreme hydrological events associated with global warming are likely to produce an increasing number of flooding scenarios resulting in significant bridge inundation and associated damages. During large floods, the presence of a bridge in an open channel triggers a highly turbulent flow field including 3D complex coherent structures around bridge structures. These turbulence structures are highly energetic and possess high sediment entrainment capacity which increases scouring around the bridge foundation and consequently lead to structural stability problems or even failure of the structure.

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49

Austin, Ryan A. "Numerical Simulation of the Shock Compression of Microscale Reactive Particle Systems." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7182.

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The shock compression of Reactive Particle Metal Mixtures (RPMMs) is studied at the microscale by direct numerical simulation. Mixture microstructures are rendered explicitly, providing spatial resolution of the coupled thermal, mechanical, and chemical responses at the particle level during shock compression. A polymer-bonded aluminum-iron oxide thermite system is the focus of this work; however, the computational methods developed here may be extended to other reactive particle systems. Shock waves are propagated through the mixtures in finite element simulations, where Eulerian formulati

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50

"Efficient Numerical Methods for Heart Simulation." Thesis, 2015. http://hdl.handle.net/10388/ETD-2015-04-2038.

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The heart is one the most important organs in the human body and many other live creatures. The electrical activity in the heart controls the heart function, and many heart diseases are linked to the abnormalities in the electrical activity in the heart. Mathematical equations and computer simulation can be used to model the electrical activity in the heart. The heart models are challenging to solve because of the complexity of the models and the huge size of the problems. Several cell models have been proposed to model the electrical activity in a single heart cell. These models must be

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