Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"coupled fluid"”.
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Coupled Fluid-Structure Interaction Modeling of a Parafoil
… the foundation for using an implicit fluid-structure interaction computational model to tackle the challenges of modeling a highly-flexible, porous fabric for design optimization of a parafoil parachute’s transient performance. Canopy deformations of a single-cell square parafoil using …
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Coupled fluid-structural characteristics of actuators for flow control
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
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Influence of faults on the 3D coupled fluid and heat transport
… -Barrieren oder als gemischte leitende /stauende Fluidsysteme wirken. Aufgrund dessen können Störungen maßgeblich den Grundwasserfluss im Untergrund beeinflussen, welcher deutliche Veränderungen des tiefen thermischen Feldes bewirken kann. Grundwasserdynamik und Temperaturveränderungen sind …
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Microcomputer-based controller of coupled fluid pressures in triaxial stress testing
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1985.
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Coupled fluid structure simulations for application to grid-to-rod fretting
… In this thesis, an initial verification of the Fluid Structure interaction (FSI) coupling algorithm for flow inside a vibrating tube was conducted using CFD software STAR CCM+. The benchmark confirmed accurate predictions of the coupled frequencies over a wide range of Reynolds numbers, …
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A simultaneous solution procedure for fully coupled fluid flows with structural interactions
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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Coupled fluid-thermal analysis of low-pressure sublimation and condensation with application to freeze-drying
… part of the dissertation is aimed at performing coupled fluid-thermal analysis of low-pressure sublimation-condensation processes typical of freeze-drying technologies. Both, experimental and computational models are used to first understand the key heat transfer modes during the process. A …
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Fully Coupled Fluid Structure Interaction Simulation of Bioprosthetic Heart Valves: A Numerical and Experimental Analysis
<p>Aortic stenosis impacts approximately 7% of the global population. In the past decade, the role of computational modeling has been becoming considerably important in the design of BHVs. To obtain reliable solutions in computational modeling, it is essential to consider accurate properties of …
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Fully-coupled fluid-structure analysis of a baffled rectangular orthotropic plate using the boundary element and finite element methods
… this dissertation the formulation of the fully coupled fluid-structure interaction of a laminated composite plate and its surrounding fluid medium is presented. The solution technique involves the finite element method for modeling the structural response and the boundary element method for …
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Modeling and control of nonlinear systems
… model for turbulence consisting of a lattice of coupled fluid vortices is constructed. The model is directly related to an experimental system. Numerical results, obtained by computer simulations of this model, are compared with the experimental observations. The model displays a transition from …
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Design and process/measurement for immersed element control in a reconfigurable vertically falling soap film
… to achieve least energy solutions. However, coupled fluid-structural models are too computationally intensive for in-the-loop control in viscous flow regimes. My vertically falling soap film will provide a reconfigurable experimental environment for machine learning controllers. The real-time …
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Experiments and modeling of multilayered coatings and membranes : application to thermal barrier coatings and reverse osmosis membranes
… constitutive laws. Furthermore, a coupled fluid-permeation and large deformation theory is proposed for crosslinked polymers with a view towards application to reverse-osmosis. A systematic simulation plus experiment-based methodology is proposed in order to calibrate the material …
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Efficient modeling and waveform inversion of multicomponent seismic data for anisotropic media
… strategies for estimating the parameters of coupled fluid/solid VTI (transversely isotropic with a vertical symmetry axis) media using multicomponent ocean-bottom data. First, I develop a graphics processing unit (GPU)-based MFD+FSG algorithm to efficiently model elastic wavefields in …
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Exploratory Study on the Design of Combined Aero-Thermo-Structural Experiments in High Speed Flows
… of panels for experimental tests investigating fluid-thermal-structural interactions. The United States Department of Defense (DoD) and the National Aeronautics and Space Administration (NASA) are both interested in hypersonic vehicles due to their incredible capabilities for long range strike, …
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Numerical investigation of time-integration schemes applicable to fluid-structure interaction
… engineering applications the interaction between fluid and structures represents a crucial aspect for analysis and proper design. The simulation of this phenomenon requires the application of high-fidelity numerical methods. In the current work, the fluid and structural equations both utilize the …
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HIGH-FIDELITY MODELING AND PHYSICS OF BIO-INSPIRED MORPHING AND FLAPPING WINGS
… the exploration of the role of flexibility in coupled dynamics. To predict the fully-coupled fluid-flexible multibody structure system, a partitioned body-fitted formulation based on the coupling of an incompressible unsteady viscous fluid solver and a flexible multibody structure solver is …
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Effect of Reynolds Number and Geometry on the Undulatory Hydrodynamics of Tapered Elastic Plates
… uniform thickness in an incompressible Newtonian fluid with varying medium properties and plate geometries is investigated numerically using a fully coupled fluid–structure interaction computational model. Thickness tapering leads to the acoustic black hole effect at the propulsor trailing edge …
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Development of a State-Space Aeroelastic Model of a Flexible T-Tail Aircraft for Flutter Analysis
… new aircraft. Current analysis methods include coupled fluid structure interaction codes and doublet lattice panel codes. The computation resources and time required for CFD solutions makes them unattractive for preliminary design and doublet lattice models require considerable pre and post …
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A blurred interface formulation of The Reference Map Technique for Fluid-Solid Interactions and Fluid-Solid-Solid Interactions
… work we present a blurred interface method for Fluid-Solid Interactions (FSI) and multiple solids immersed in a fluid or FSSI (Fluid-Solid-Solid Interactions) based on the reference map technique as presented by Kamrin and Rycroft. I will follow the chain of thought which lead from the initial …
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