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 14 of 14 for “"slender body theory"”.
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Numerical investigation of subsonic flow over bodies of revolution and a typical missile forebody
… to study the subsonic flow over a missile forebody. To this end, the NASA Ames developed OVERFLOW, three dimensional, Navier-Stokes Code was applied and detailed results were obtained for the missile forebody. The flow conditions were set at a Mach Number of 0.3 and Reynolds Number of two …
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Effect of angular orientation on the hydrodynamic forces acting on a body in a restricted waterway
A slender body theory method developed for a body moving parallel to a wall in shallow water is extended to include angular orientation of the body to the wall. The method satisfies only the zero normal velocity condition on the external boundaries but does not take into account the effect of …
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Vertical forces on the coupling of a pusher tug-barge
… three-dimensional solution method (unified slender body theory) is used to develop this interaction between the two hulls in coupled modes of motion at zero speed. Only the heave and pitch modes are considered. Experimental work was done on a coupled tug-barge model. The model was …
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An experimental study of the human interface with one atmosphere diving suit by appendages
… during motion through the application of Slender Body Theory paired with motion data from the IMUs.
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Dynamic Self-Assembly of Magnetic Colloidal Particles
… coupled hydrodynamics that goes beyond slender body theory of the linked chains? This thesis answers the three questions and contributes to the understanding of colloidal dynamics and self-assembly in dynamic magnetic fields in the regime of high Mason numbers. We explore two aspects of …
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Swimming at low Reynolds number slip boundaries and interacting filaments
… In subsequent work, I extend the classical slender-body theory to replace the no-slip boundary condition by a finite slip length. The second part of the thesis addresses the nature of hydrodynamic interactions between filaments - a phenomenon that occurs widely in the biological world. By …
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Dynamics of single semiflexible filaments in a viscous fluid
… of short single semiflexible polymers using slender body theory in Stokes flow. An algorithm is developed that takes into account the inextensibility and elasticity of the filament, and accounts for hydrodynamic as well as Brownian forces. This is tested against theoretically known and …
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A computational framework for the large scale simulation of the dynamics of highly flexible filaments in a viscous flow
… we present the methods to model the dynamics of slender fibers immersed in a viscous fluid within a physics-based computational framework. Motivated by the very large deformations that the fibers experience especially in the case of extreme aspect ratios, we implement a finite element framework …
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Geometrically nonlinear configurations in rod-like structures
… geometrically nonlinear deformation. Due to the slender geometry of the structures, the material strain usually remains in linear elastic limit even though the deformed geometry deviates significantly from the original geometry. The geometric nonlinearities that result from the deformation …
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Geometry and Hydrodynamics of Swimming with a Bundle of Bacterial Flagella
… theories for the hydrodynamics of slender filaments, namely resistive-force theory (RFT) for the analytical calculations and slender-body theory (SBT) for the numerical simulations. The first part of the thesis, comprising three chapters, deals with the geometric aspects of having …
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Active cellular flows: biological networks, cytoplasmic streaming and swimming bacteria
… near-optimal nuclear spreading. Lubrication theory produces an even simpler solution, applicable to more general cell geometries and incurring errors below 5% compared with the exact solution. An application of this lubrication result to transport leads to fully analytical solutions for the …
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Multi-fidelity analysis and reduced-order modeling of wing-body aerodynamics
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Aeroelasticidad de una aeronave en presencia de nolinealidades estructurales concentradas
… FHSWB, acrónimo de Freeplay Hysteresis on Slender Wing/Body Configurations, e incluye las siguientes módulos: módulo de planteamiento de ecuaciones aeroelásticas en el Estado-Espacio, módulo de integración en el dominio del tiempo (con método Illinois para determinar condiciones de cambio), …
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A Theory and Analysis of Planing Catamarans in Calm and Rough Water
… hydrodynamics. Based on Vorus' planing monohull theory, he has developed and implemented a first order nonlinear model for planing catamarans, embodied in the computer code CatSea. This model is currently applied in planing catamaran design. However, due to the greater complexity of the catamaran …