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Tesis sobre el tema "Fluid-structure interaction"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Mawson, Mark. "Interactive fluid-structure interaction with many-core accelerators." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/interactive-fluidstructure-interaction-with-manycore-accelerators(a4fc2068-bac7-4511-960d-41d2560a0ea1).html.

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The use of accelerator technology, particularly Graphics Processing Units (GPUs), for scientific computing has increased greatly over the last decade. While this technology allows larger and more complicated problems to be solved faster than before it also presents another opportunity: the real-time and interactive solution of problems. This work aims to investigate the progress that GPU technology has made towards allowing fluid-structure interaction (FSI) problems to be solved in real-time, and to facilitate user interaction with such a solver. A mesoscopic scale fluid flow solver is impleme

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2

Altstadt, Eberhard, Helmar Carl, and Rainer Weiß. "Fluid-Structure Interaction Investigations for Pipelines." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-28993.

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The influence of the fluid-structure interaction on the magnitude fo the loads on pipe walls and support structures is not yet completely understood. In case of a dynamic load caused by a pressure wave, the stresses in pipe walls, especially in bends, are different from the static case.

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3

Plessas, Spyridon D. "Fluid-structure interaction in composite structures." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/41432.

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Approved for public release; distribution is unlimited.<br>In this research, dynamic characteristics of polymer composite beam and plate structures were studied when the structures were in contact with water. The effect of fluid-structure interaction (FSI) on natural frequencies, mode shapes, and dynamic responses was examined for polymer composite structures using multiphysics-based computational techniques. Composite structures were modeled using the finite element method. The fluid was modeled as an acoustic medium using the cellular automata technique. Both techniques were coupled so that

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4

Randall, Richard John. "Fluid-structure interaction of submerged shells." Thesis, Brunel University, 1990. http://bura.brunel.ac.uk/handle/2438/5446.

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A general three-dimensional hydroelasticity theory for the evaluation of responses has been adapted to formulate hydrodynamic coefficients for submerged shell-type structures. The derivation of the theory has been presented and is placed in context with other methods of analysis. The ability of this form of analysis to offer an insight into the physical behaviour of practical systems is demonstrated. The influence of external boundaries and fluid viscosity was considered separately using a flexible cylinder as the model. When the surrounding fluid is water, viscosity was assessed to be signifi

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5

Giannopapa, Christina-Grigoria. "Fluid structure interaction in flexible vessels." Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413425.

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6

Wright, Stewart Andrew. "Aspects of unsteady fluid-structure interaction." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621939.

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7

Altstadt, Eberhard, Helmar Carl, and Rainer Weiß. "Fluid-Structure Interaction Investigations for Pipelines." Forschungszentrum Rossendorf, 2003. https://hzdr.qucosa.de/id/qucosa%3A21726.

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The influence of the fluid-structure interaction on the magnitude fo the loads on pipe walls and support structures is not yet completely understood. In case of a dynamic load caused by a pressure wave, the stresses in pipe walls, especially in bends, are different from the static case.

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8

Holder, Justin. "Fluid Structure Interaction in Compressible Flows." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin159584692691518.

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9

Paton, Jonathan. "Computational fluid dynamics and fluid structure interaction of yacht sails." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/14036/.

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This thesis focuses on the numerical simulation of yacht sails using both computational fluid dynamics (CFD) and fluid structure interaction (FSI) modelling. The modelling of yacht sails using RANS based CFD and the SST turbulence model is justified with validation against wind tunnel studies (Collie, 2005; Wilkinson, 1983). The CFD method is found to perform well, with the ability to predict flow separation, velocity and pressure profiles satisfactorily. This work is extended to look into multiple sail interaction and the impact of the mast upon performance. A FSI solution is proposed next, c

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10

Gregson, James. "Fluid-structure interaction simulations in liquid-lead." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/12340.

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An Eulerian compressible ﬂow solver suitable for simulating liquid-lead ﬂows involving ﬂuid-structure interaction, cavitation and free surfaces was developed and applied to investigation of a magnetized target fusion reactor concept. The numerical methods used and results of common test cases are presented. Simulations were then performed to assess the smoothing properties of interacting mechanically generated shocks in liquid lead, as well as the early-time collapse behavior of cavities due to free surface reﬂection of such shocks. An empirical formula to estimate shock smoothness based on th

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11

Blair, Stuart R. "Lattice Boltzmann Methods for Fluid Structure Interaction." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/17325.

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Approved for public release; distribution is unlimited<br>The use of lattice Boltzmann methods (LBM) for fluid flow and its coupling with finite element method (FEM) structural models for fluid-structure interaction (FSI) is investigated. A body of high performance LBM software that exploits graphic processing unit (GPU) and multiprocessor programming models is developed and validated against a set of two- and three-dimensional benchmark problems. Computational performance is shown to exceed recently reported results for single-workstation implementations over a range of problem sizes. A mixed

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12

Nitikitpaiboon, Chanwut. "Finite element formulations for fluid-structure interaction." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/37500.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1993.<br>Includes bibliographical references (leaves 123-128).<br>by Chanwut Nitikitpaiboon.<br>Ph.D.

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13

Mullaert, Jimmy. "Numerical methods for incompressible fluid-structure interaction." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066683/document.

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Cette thèse présente une famille de schémas explicites pour la résolution d'un problème couplé d'interaction entre un fluide visqueux incompressible et une structure élastique (avec possiblement un comportement visco-élastique et/ou non linéaire). La principale propriété de ces schémas est une condition de Robin consistante à l'interface, qui représente une caractéristique fondamentale du problème continu dans le cas où la structure est mince. Si le couplage s'effectue avec une structure épaisse, une condition de Robin généralisée peut être formulée pour le problème semi-discret en espace, à l

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14

Andersson, Christoffer, and Daniel Ahl. "Fluid Structure Interaction: Evaluation of two coupling techniques." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-16050.

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This thesis concerns one of the upcoming and well discussed subjects withincalculations these days, namely how to perform an analysis of the interactionbetween fluid and structure, called FSI (Fluid Structure Interaction). In the report,evaluations of two different methods of simulating FSI are done. These are knownas Practical FSI (P-FSI) and Direct Coupled FSI (DC-FSI). The methods aredeveloped by Acusim in cooperation with Simulia and the softwares used areAbaqus and AcuSolve.The first part of the thesis is dedicated to explain the general theory and thegoverning equations for FSI. After th

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15

Hamdan, Fadi. "Finite element solutions for transient fluid-structure interaction." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/8119.

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The objective of this thesis is to develop numerical tools capable of modelling the nonlinear behaviour of bounded and unbounded transient fluid-structure interaction systems. Towards this end, a numerical approach based on the finite element method was developed and implemented into a general purpose computer program ASAS-NL. Four main developments are reported: (i) The Mixed-Eulerian-Lagrangian description of the continuum has been developed to account for the nonlinear effects of fluid-structure interaction systems and a mesh rezoning scheme derived to be used with it. In addition a predict

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16

Jeans, Richard. "Innovative methods for three dimensional fluid-structure interaction." Thesis, Imperial College London, 1992. http://hdl.handle.net/10044/1/8189.

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17

Lea, Patrick D. "Fluid Structure Interaction with Applications in Structural Failure." Thesis, Northwestern University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3605735.

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<p> Methods for modeling structural failure with applications for fluid structure interaction (FSI) are developed in this work. Fracture as structural failure is modeled in this work by both the extended finite element method (XFEM) and element deletion. Both of these methods are used in simulations coupled with fluids modeled by computational fluid dynamics (CFD). The methods presented here allow the fluid to pass through the fractured areas of the structure without any prior knowledge of where fracture will occur. Fracture modeled by XFEM is compared to an experimental result as well as a t

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18

Violette, Michael A. "Fluid structure interaction effect on sandwich composite structures." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5533.

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Approved for public release; distribution is unlimited.<br>The objective of this research is to examine the fluid structure interaction (FSI) effect on composite sandwich structures under a low velocity impact. The primary sandwich composite used in this study was a 6.35-mm balsa core and a multi-ply symmetrical plain weave 6 oz E-glass skin. The specific geometry of the composite was a 305 by 305 mm square with clamped boundary conditions. Using a uniquely designed vertical drop-weight testing machine, there were three fluid conditions in which these experiments focused. The first of these co

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19

Skelton, E. A. "Some mixed boundary problems of fluid-structure interaction." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47663.

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20

Boyd, Alistair Richard. "Fluid-structure interaction under fast transient dynamic events." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/10835.

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Underwater explosive loading resulting from rapid phase transitions (RPT's) is one example of a fast transient dynamic event. The leakage of substances such as LPG or LNG when stored underwater can cause an RPT. These substances are often stored in a combination of very low temperatures and high pressures with respect to the surrounding fluid (seawater) and their leakage can cause the equivalent of an underwater explosion. Such containers are usually found to be part of a much larger 'storage field' of containers. An RPT occurring in one container will cause underwater explosive loading on nei

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21

Ridzon, Matthew C. "Quantifying Cerebellar Movement With Fluid-Structure Interaction Simulations." University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1590752448366714.

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22

Ramirez, Villalba Leidy catherine. "Towards an efficient modeling of Fluid-Structure Interaction." Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0029.

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Les applications industrielles FSI se caractérisent par des géométries et des matériaux complexes. Afin de prédire avec précision leur comportement, des coûts de calcul élevés sont associés, à la fois en temps et en ressources informatiques. Pour améliorer la qualité de la prédiction sans pénaliser le temps de calcul, et pour réduire le temps de calcul sans impacter la précision disponible aujourd'hui, deux axes principaux sont explorés dans ce travail. Le premier est l'étude d'un algorithme asynchrone qui pourrait permettre l'utilisation de modèles structurels complexes. Le second consiste à

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23

Avcu, Mehmet. "Fluid-structure interaction effects resulting from hull appendage coupling." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Sep%5FAvcu.pdf.

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24

Tello, Guerra Alexis. "Fluid structure interaction by means of reduced order models." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/669328.

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The standard Fluid Structure Interaction coupling (velocity--pressure/displacement) is compared against two novel types of coupling, a Two Field coupling (velocity--pressure/displacement--pressure) and a Three Field coupling (velocity--pressure--stress/displacement--pressure--stress) in this way completing our set of, what we call, field to field equations, all stabilized by means of the VMS method using dynamic and orthogonal sub-scales. The solid Two field fluid structure interaction coupling formulation is benchmarked statically and dynamically. POD is applied to all three fluid structure i

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25

Lee, Wee Siang. "Exterior domain decomposition method for fluid-structure interaction problems." Thesis, Imperial College London, 1999. http://hdl.handle.net/10044/1/8533.

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26

Franco, Flavio Jose Borges Fortes. "Finite element analysis of fluid-structure interaction in turbomachines." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7913.

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27

Eeg, Thomas Bertheau. "Fluid Structure Interaction Simulation on an Idealized Aortic Arch." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19319.

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The aortic arch is at risk of several cardiovascular diseases, such as aortic dissection. Many of these risk factors are due to the fluid-structure interaction that occurs in the aorta. Fluid-structure interation (FSI) simulations are a very useful tool in identifying these risks. The goal of this study is to obtain a simplified picture of healthy physiological flow and lay the foundation for further studies on cardiovascular diseases in the aortic arch. A 3-dimensional idealized FSI model of the aorta was constructed from measurements found in the literature. This model was simulated using th

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28

Seddon, Caroline Michelle. "Modelling transient dynamic fluid-structure interaction in aerospace applications." Thesis, University of Salford, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492434.

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Although significant progress has been made in the study of dynamic loading of aircraft structures, several areas have been identified that require further research. In particular, attention is drawn to problems involving transient, dynamic fluid-structure interaction, where fluids play an important role, heavily influencing the response of the structure to the applied dynamic load. In this work the use of existing numerical modelling techniques for the evaluation of such problems is investigated.

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29

He, Tao. "Hybrid interface conditions for partitioned fluid-structure interaction simulations." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8650/.

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This thesis proposes the combined interface boundary condition (CIBC) method for fluid-structure interaction (FSI) within the arbitrary Lagrangian-Eulerian finite element framework. The CIBC method employs a Gauss-Seidel-like procedure to transform the traditional interface conditions into the velocity and traction corrections in a mixed manner. A free parameter is adopted to control the effect of such a treatment on the interface. Nevertheless, the restricted use of the CIBC method is realized after recalling its recent development. Then the thorough derivation of the CIBC method are presente

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30

Kambouchev, Nayden Dimitrov 1980. "Analysis of blast mitigation strategies exploiting fluid-structure interaction." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42045.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 163-177).<br>Blast attacks have become the most pervasive threat in both civil and military contexts. However, there is currently a limited understanding of the mechanisms of loading, damage and failure of structures, and injury to humans produced by blast. This thesis seeks to advance our current underst

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31

Luu, Van Chi. "Boundary-integral formulations for three-dimensional fluid-structure interaction." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/42518.

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32

Taylor, Richard. "Finite element modelling of three dimensional fluid-structure interaction." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42308.

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This work is focused on the numerical modelling of fluid-structure interaction in three dimensions. Both internal and external laminar flow around flexible bodies are considered. The fluid flow simulated is based on the incompressible Navier-Stokes equations and the general focus is on laminar Newtonian flow. The streamline upwind/ pressure stabilising Petrov-Galerkin (SUPG/PSPG) method is employed to achieve a stable low order finite element discretisation of the fluid, while the solid is discretised spatially by a standard Galerkin finite element approach. The behavior of the solid is govern

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33

Yang, Liang. "An immersed computational framework for multiphase fluid-structure interaction." Thesis, Swansea University, 2015. https://cronfa.swan.ac.uk/Record/cronfa42413.

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The objective of this thesis is to further extend the application range of immersed computational approaches in the context of hydrodynamics and present a novel general framework for the simulation of fluid-structure interaction problems involving rigid bodies, flexible solids and multiphase flows. The proposed method aims to overcome shortcomings such as the restriction of having to deal with similar density ratios among different phases or the restriction to solve single-phase flows. The new framework will be capable of coping with large density ratios, multiphase flows and will be focussed

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34

Guadarrama, Lara Rodrigo. "Modelling fluid-structure interaction problems with coupled DEM-LBM." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17444/.

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When studying the properties and behaviour of particulate systems, a multi-scale approach is an efficient way to describe interactions at different levels or dimensions; this means that phenomena taking place at one scale will inherently impact the properties and behaviour of the same system in a different scale. Numerical representation and simulation of fluid-structure interaction (FSI) systems is of particular interest in the present work. Conventional computational fluid dynamics (CFD) methods involve a top-down approach based on the discretisation of the macroscopic continuum Navier-Stoke

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35

Miller, Samuel C. "Fluid-Structure Interaction of a Variable Camber Compliant Wing." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1428575972.

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36

Liu, Xinyang. "A Monolithic Lagrangian Meshfree Method for Fluid-Structure Interaction." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1459348741.

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37

Diniz, dos Santos Nuno Miguel. "Numerical methods for fluid-structure interaction problems with valves." Paris 6, 2007. http://www.theses.fr/2007PA066683.

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Cette thèse est motivée par la modélisation et la simulation numérique des phénomènes d’interaction fluide-structure autour de valves cardiaques. L’interaction avec la paroi des vaisseaux est traitée avec une formulation Arbitraire Lagrange Euler (ALE), tandis que l’interaction avec les valves est traitée à l’aide de multiplicateurs de Lagrange, dans une formulation de type Domaines Fictifs (FD). Après une présentation de synthèse des di- verses méthodes utilisées en interaction fluide-structure dans les écoulements sanguins, nous décrivons une méthode permettant de simuler la dynamique d’une

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38

CARO, DIAZ FREDDY SANTIAGO. "ANALYSIS OF FLUID STRUCTURE-INTERACTION (FSI) PROBLEMS IN ANSYS." Thesis, Faculty of Engineering and Information Technologies. School of Aerospace, Mechanical & Mechatronic Engineering, 2015. https://hdl.handle.net/2123/30023.

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The Fluid-Structure Interaction problems occur in many natural phenomena and man-made engineering systems, this fact has promoted the research in this area. The research in this field of study is implementing two different methodologies. The first one is the use of commercial programs that have developed FSI capabilities such as Ansys or ADINA. The second methodology is the development of computational codes to solve specific problems of FSI analysis. This Project in particular focuses in the evaluation of Ansys-Fluent to perform FSI simulations. Two aeroelastic cases were simulated in Ansys,

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39

Joosten, Martina Maria. "Aspects of interface modelling in fluid-structure interaction problems." Thesis, Swansea University, 2011. https://cronfa.swan.ac.uk/Record/cronfa42211.

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Different aspects of computational fluid-structure interaction are considered in this work. A brief introduction to fluid dynamics, structural mechanics and the finite element method is given, followed by an overview of interface modelling and the different solution strategies available for the coupling of the domains. A number of time integration schemes are explained in detail with a focus on their stability and accuracy properties. A model problem is introduced to investigate the situation where different domains of a coupled problem are solved with different time integration schemes. It is

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40

Zhang, Runze. "Modeling of coupled vibration systems with fluid-structure interaction." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST136.

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Cette thèse porte sur deux aspects de la dynamique vibratoire des structures en interaction fluide-structure (IFS) : le contrôle des vibrations des structures immergées dans un fluide et la récupération des vibrations induites par un fluide pour leur conversion en énergie électrique. Ce mémoire présente nos contributions dans ces deux domaines.Premièrement, concernant le contrôle des vibrations, l'émergence récente des méta-structures a ouvert de nouvelles perspectives pour maîtriser les vibrations des structures en IFS. Ces structures, souvent constituées de microstructures périodiques, perme

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41

Landajuela, Larma Mikel. "Coupling schemes and unfitted mesh methods for fluid-structure interaction." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066053/document.

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Cette thèse est dédiée à la simulation numérique des systèmes mécaniques impliquant l'interaction entre une structure mince déformable et un fluide incompressible interne ou qui l'entoure.Dans la première partie, nous introduisons deux nouvelles classes de schémas de couplage explicites en utilisant des maillages compatibles. Les méthodes proposées combinent une certaine consistance Robin dans le système avec (i) un schéma à pas fractionnaire pour le fluide ou (ii) une discrétisation temporelle d'ordre deux pour le fluide et le solide. Les propriétés de stabilité des méthodes sont analysées da

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42

Marella, Saikrishna V. Udaykumar H. S. "A Parallelized sharp-interface fixed grid method for moving boundary problems." Thesis supplements, 2006. http://ir.uiowa.edu/etd/88.

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43

Sieber, Galina. "Numerical simulation of fluid structure interaction using loose coupling methods." Phd thesis, [S.l. : s.n.], 2002. http://elib.tu-darmstadt.de/diss/000254.

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44

Baumgart, Johannes. "The Hair Bundle: Fluid-Structure Interaction in the Inner Ear." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-63810.

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A multitude of processes cooperate to produce the sensation of sound. The key initial step, the transformation from mechanical motion into an electrical signal, takes place in highly specialized mechanosensitive organelles that are called hair bundles due to their characteristic appearance. Each hair bundle comprises many apposed cylindrical stereocilia that are located in a liquid-filled compartment of the inner ear. The viscous liquid surrounding the hair bundle dissipates energy and dampens oscillations, which poses a fundamental physical challenge to the high sensitivity and sharp frequenc

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45

Larsson, Martin. "Numerical Modeling of Fluid-Structure Interaction in the Human Larynx." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11198.

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This thesis presents a method for fluid-structure interaction in a simplified 2D model of the human larynx using the arbitrary Lagrangian–Eulerian (ALE) approach and a strictly stable high order finite difference method. The ALE method is first tested for the fluid solver with a prescribed boundary movement, and then the method is extended to a two-way coupled explicit fluid-structure interaction where the vocal folds interact with the airflow in the larynx. In each case, the fluid is treated as a Newtonian fluid obeying the perfect gas law and laminar flow is always assumed. Since the interes

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46

Thiriat, Paul. "FLUID-STRUCTURE INTERACTION : EFFECTS OF SLOSHING IN LIQUID-CONTAINING STRUCTURES." Thesis, KTH, Bro- och stålbyggnad, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125353.

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This report presents the work done within the framework of my master thesis in the program Infrastructure Engineering at KTH Royal Institute of Technology, Stockholm. This project has been proposed and sponsored by the French company Setec TPI, part of the Setec group, located in Paris. The overall goal of this study is to investigate fluid-structure interaction and particularly sloshing in liquid-containing structures subjected to seismic or other dynamic action. After a brief introduction, the report is composed of three main chapters. The first one presents and explains fluid-structure inte

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47

Nobari, Soroush. "Fluid structure interaction and hemodynamic analysis of the aortic valve." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114410.

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Cardiovascular pathologies specifically valvular heart diseases remain the biggest cause of deaths worldwide with a mortality rate of 4% in industrialized countries and up to 42% in developing countries. Aortic valve and coronary arteries have in particular been the focus of many studies during the recent years. This is due to the prevalence of pathologies in these regions and the subsequent critical consequences. In certain pathological conditions such as aortic sclerosis, the micro-structure of the aortic root and the aortic valve leaflets are altered in response to stress resulting in chang

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Yeh, Han Hung. "Computational analysis of fluid structure interaction in artificial heart valves." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44921.

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The development of heart valve stenosis and sclerosis can lead to the development of fatal complications such as congestive heart failure. Therefore, severe valve stenosis requires a surgical operation with artificial heart valve replacement. Given that the geometrical differences between artificial valves would significantly influence hemodynamic performance around the implanted valve, additional knowledge for the interactions between blood flow and the artificial valve is necessary. Therefore, in order to proceed, this study proposes an advanced computational fluid dynamics (CFD) simulation

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49

TEUMA-MELAGO, Eric. "A FLUID STRUCTURE INTERACTION MODEL OF INTRACORONARY ATHEROSCLEROTIC PLAQUE RUPTURE." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2359.

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Plaque rupture with superimposed thrombosis is the primary cause of acute coronary syndromes of unstable angina, myocardial infarction and sudden death. Although intensive studies in the past decade have shed light on the mechanism that causes unstable atheroma, none has directly addressed the clinical observation that most myocardial infarction (MI) patients have moderate stenoses (less than 50%). Considering the important role the arterial wall compliance and pulsitile blood flow play in atheroma rupture, fluid-structure interaction (FSI) phenomenon has been of interest in recent studies. In

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50

Conner, Ryan P. "Fluid Structure Interaction Effects on Composites Under Low Velocity Impact." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7324.

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In this study composite materials were tested in different fluid environments to determine the role of Fluid Structure Interaction with these composites under a lower velocity impact. The purpose of this research is to develop a better understanding of possible marine applications of composite materials. This was done using a low velocity impact machine and two composite types. The first composite is made from a multi-ply symmetrical plain weave 6 oz. E-glass skin. The test area of the composites is 12 in by 12 in (30.5 cm by 30.5 cm) with clamped boundary conditions. The testing was done usin

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