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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 420 for “"Free Surface"”.
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Trailing vortex free-surface interaction
… of the interaction of a trailing vortex with a free surface has been undertaken for the purpose of understanding the origin and scars and striations. Velocity and turbulence measurements have been carried out through the use of a Laser-Doppler-Velocimeter (LDV) for various positions of the …
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Singularities in Free Surface Flows
Free surface flows where the shape of the interface separating two or more phases or liquids are unknown apriori, are commonplace in industrial applications and nature. Distribution of drop sizes, coalescence rate of drops, and the behavior of thin liquid films are crucial to understanding and …
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Free surface flows over submerged obstructions
Steady and unsteady two-dimensional free surface flows subjected to one or multiple disturbances are considered. Flow configurations involving either a single fluid or two layers of fluid of different but constant densities, are examined. Both the effects of gravity and surface tension are …
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Free surface flow over bottom topography
… the problem of finding the shape of the unknown free-surface if the bottom topography is prescribed forms the main problem of this thesis. In chapter 2 the forced Korteweg De- Vries equation is derived from first principles as a model partial differential equation that determines the shape of the …
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Computational analysis of viscoelastic free surface flows
… tracking techniques one of which includes surface tension effects. These techniques are the Scalar Equation Algorithm (SEA) and the Level Set Method (LSM). With both techniques the algorithms are able to take into account flow effects from both fluids (ie. air and polymer) in a two-fluid …
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Free surface dynamics in shallow turbulent flows.
… aimed to understand the processes that govern free surface behaviour in depth-limited turbulent flows. Experimental data has shown that the turbulence properties at a point near the free surface relate directly to the properties of the free surface pattern. This would suggest a direct linkage …
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Numerical Treatment of Laminar Free Surface Flows
Made available in DSpace on 2014-12-10T17:57:50Z (GMT). No. of bitstreams: 1 6808181.pdf: 2269108 bytes, checksum: 957fc24e1fb70a670db03ffd7d160e58 (MD5) Previous issue date: 1967
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Inference and Entropy in Free-Surface Flows
In spite of the ubiquity of free-surface flows across both nature and industry, theoretical and numerical modelling remains challenging. Continuum flows, whether Newtonian or Non-Newtonian, are governed by the Navier–Stokes equations, whilst the particle-particle interactions within a granular flow …
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Free surface waves on electrically conducting fluids
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1964.
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Viscoelastic free surface instabilities during exponential stretching
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, February 2002.
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Shooting device for free-surface impact studies
The hydrodynamics of free-surface impacts are of great interest to scientists across many disciplines including ocean engineering, fluids mechanics, and biology. This thesis focuses on designing a mechanism to shoot small projectiles downward. Two pneumatic shooting mechanisms were investigated: …
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Hydrodynamics involving a free-surface body juncture
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1998.
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Free surface flow over a wavy bed.
Massachusetts Institute of Technology, Dept. of Civil Engineering, Thesis. 1965. M.S.
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Numerical study of nonlinear free-surface flows
Nonlinear free-surface flows generated by the motion of a surface-piercing body in an ideal fluid are studied. A numerical scheme employing a mixed Eulerian-Lagrangian approach and involving time stepping is used to simulate the flow. At each time step, the boundary value problem is solved using …
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Free-surface turbulence and air-water gas exchange
… technique is developed in order to quantify free-surface flows. Two aspects of this work are innovative. First, the use of a three-dimensional laser light cone and optical filtering of the camera allow for the motion of fluorescent flow tracers at the water surface to be isolated and …
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Mechanics of Sandbag Motion In Free-Surface Flow
<p>Sandbags have been widely used for flood control and for the closure of levee breaches due to their low cost and ease of use. However, the available information for determining the appropriate size for a typical application and research on the mechanics of motion of sandbag needed to optimize …
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Wave effects of a free surface piercing hydrofoil.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Ocean Engineering, 1973
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Galerkin method to model thin free surface flows
Viscoelastic thin films with free surface are important in industry as well as in nature. However, there does not exist a robust and systematic framework to analyze such films. Lubrication approximations, largely successful in studying thin generalized Newtonian fluid flows, have been employed to …
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Free-surface turbulence and air-water gas exchange
Thesis (Ph.D.)--Joint Program in Applied Ocean Science and Engineering (Massachusetts Institute of Technology, Dept. of Ocean Engineering; and the Woods Hole Oceanographic Institution), 2000.
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A WC-MPS Model for Viscous Free Surface Flows
… decades, but they will fail in the simulation of free surface flow problems due to the large deformation and fragmentation, and they suffer from some problems whose objects are a set of discrete physical particles (rather than a continuum). On the contrary, mesh-less particle methods (MPMs), or …
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