Academic literature on the topic 'Phenomenological fluid-structure interaction model'

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Dissertations / Theses on the topic "Phenomenological fluid-structure interaction model"

1

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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Ferria, Hakim. "Experimental Campaign on a Generic Model for Fluid-Structure Interaction Studies." Thesis, KTH, Kraft- och värmeteknologi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48975.

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Fluid-structure interactions appear in many industrial applications in the field of energy technology. As the components are more and more pushed to higher performance, taking fluid-structure interaction phenomena into account has a great impact on the design as well as in the cost and safety. Internal flows related to propulsion systems in aerodynamics area are of our interest; and particularly aeroelasticity and flutter phenomena. A new 2D flexible generic model, so called bump, based on previous studies at the division of Heat and Power Technology about fluid-structure interactions is here
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Hao, Qing. "Modeling of Flow in an In Vitro Aneurysm Model: A Fluid-Structure Interaction Approach." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/508.

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Flow velocity field, vorticity and circulation and wall shear stresses were simulated by FSI approach under conditions of pulsatile flow in a scale model of the rabbit elastin-induced aneurysm. The flow pattern inside the aneurysm sac confirmed the in vitro experimental findings that in diastole time period the flow inside the aneurysm sac is a stable circular clock-wise flow, while in systole time period higher velocity enters into the aneurysm sac and during systole and diastole time period an anti-clock circular flow pattern emerged near the distal neck; in the 3-D aneurysm sac, the kinetic
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Venkataraman, Siddharth. "Analytic, Simulation and Experimental Analysis of Fluid-Pipe Systems." Thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-249996.

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Inviscid fluid inside thin pipe system is first analytically solved for eigenfrequencies and eigenmodes using Modal Interaction Model method with fluid-structure interaction condition at boundary. Shear-diaphragm boundary condition is used for comparing and validating Analytic results with Simulation using COMSOL Multiphysics. Effect of viscosity is also compared using Newtonian fluid model. Experiment is performed using simple pipe geometry and fluid to measure transfer accelerance which is post-processed to extract cirumferential modes up to order 4; this is used to compare and validate Experieme
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Tenaud, Philippe. "Analyse expérimentale des mécanismes de coercitivité dans les aimants Nd-Fe-B frittés." Grenoble 1, 1988. http://www.theses.fr/1988GRE10092.

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Mise en evidence par des mesures de trainage magnetique d'une faible reduction du champ coercitif par agitation thermique. Analyse de la variation angulaire du champ coercitif et de l'anisotropie du volume d'activation. Le developpement de la coercite en fonction du champ initial de saturation sur des echantillons desaimantes thermiquement s'interprete en supposant une apparition brutale de la coercite dans chaque grain. Mise en evidence de l'influence d'effets dipolaires locaux importants. Deduction d'un modele phenomenologique de coercite. Analyse du mecanisme de renversement d'aimantation s
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VARELLO, ALBERTO. "Advanced higher-order one-dimensional models for fluid-structure interaction analysis." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2517517.

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The aim of this work is the development of a refined reduced order model suitable for numerical applications in solid and fluid mechanics with a remarkable reduction in computational cost. Nowadays, numerical reduced order models are widely exploited in many areas, such as aerospace, mechanical and biomechanical engineering for structural analysis, fluid dynamic analysis and coupled (aeroelastic) fluid-structure interaction analysis. One-dimensional (1D) structural models, commonly known as beams, are for instance used in many applications to analyze the structural behavior of slender bodies,
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Mowat, Andrew Gavin Bradford. "Modelling of non-linear aeroelastic systems using a strongly coupled fluid-structure-interaction methodology." Diss., University of Pretoria, 2011. http://hdl.handle.net/2263/30521.

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The purpose of this study was to develop a robust fluid-structure-interaction (FSI) technology that can accurately model non-linear flutter responses for sub- and transonic fluid flow. The Euler equation set governs the fluid domain, which was spatially discretised by a vertex-centred edge-based finite volume method. A dual-timestepping method was employed for the purpose of temporal discretisation. Three upwind schemes were compared in terms of accuracy, efficiency and robustness, viz. Roe, HLLC (Harten-Lax-Van Leer with contact) and AUSM+-up Advection Up-stream Splitting Method). For this pu
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Hosein, Falahaty. "Enhanced fully-Lagrangian particle methods for non-linear interaction between incompressible fluid and structure." Kyoto University, 2018. http://hdl.handle.net/2433/235070.

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9

Lemmon, Jack David Jr. "Three-dimensional computational modeling of fluid-structure interaction : study of diastolic function in a thin-walled left heart model." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15912.

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10

BERTAGLIA, Giulia. "1D augmented fluid-structure interaction systems with viscoelasticity: from water pipelines to blood vessels." Doctoral thesis, Università degli studi di Ferrara, 2020. http://hdl.handle.net/11392/2488143.

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Nowadays, mathematical models and numerical simulations are widely used in the whole fluid dynamics research field. They represent a powerful resource to better understand phenomena and processes and to significantly reduce the costs that would otherwise be necessary for carrying out laboratory experiments (sometimes even allowing to obtain useful data that could not be collected by measurements). Currently there are many important industries of hydraulic systems which, for the correct analysis of the behavior of the designed systems, require the preventive use of an accurate mathematical mode
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