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 9 of 9 for “"Rigid boundary"”.
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Observations of turbulent fluxes and turbulence dynamics in the ocean surface boundary layer
… made during the low winds portion of the Coupled Boundary Layers and Air-Sea Transfer experiment (CBLAST-Low). Observations were made of turbulent fluxes, turbulent kinetic energy, and the length scales of flux-carrying and energy-containing eddies in the ocean surface boundary layer. A new …
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Observations of turbulent fluxes and turbulence dynamics in the ocean surface boundary layer
… made during the low winds portion of the Coupled Boundary Layers and Air-Sea Transfer experiment (CBLAST-Low). Observations were made of turbulent fluxes, turbulent kinetic energy, and the length scales of flux-carrying and energy-containing eddies in the ocean surface boundary layer. A new …
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Free-Lagrange simulations of single cavitation bubble collapse.
… of single cavitation bubbles near various boundary types. The simulations resemble an underwater explosion or laser- or spark-generated bubble, where the bubble evolution is driven by a high initial pressure difference between the bubble content and the surrounding water. The significant …
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Development and evaluation of an instrumentation system for high acceleration centrifuge testing of an artificial rock material
… mismatch on the horizontal stress due to the rigid boundary confinement was avoided by supporting the model on a flexible rubber tube filled with a liquid of an appropriate density.</p> <p>This investigation also includes the result of a comprehensive survey of various geotechnical centrifuge …
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Pattern formation in squares and rectangles
… is investigated for periodic, non-periodic (rigid) and quasi-periodic boundary conditions. Linear and weakly nonlinear analysis is used together with numerical computation to identify the bifurcation structure of steady-state solutions and to track their nonlinear development as a function of …
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Spherical wave reflection and transmission
… is greater than that of a plane wave at a hard boundary, and that when the source height increases the effective critical angle for the total reflection of a spherical wave tends to that of a plane wave. It is shown that recent predictions of spherical wave reflection and transmission …
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An experimental study on the collapse of an air-filled cylindrical cavity under dynamic loading
… bubble immersed in hydrogel, a compliant boundary, and a transient loading wave. This combination is an analog of processes that occur in biomedical applications such as shockwave lithotripsy. No-boundary, rigid boundary, and two-boundary cases were also investigated. A transient pressure …
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Geometrically nonlinear configurations in rod-like structures
… simulations to include the effect of a no-slip rigid boundary on the locomotion of uni-flagellar bacteria. We find that the propulsive force is strongly affected by the presence of a nearby boundary. Thirdly, we perform precision desktop experiments with overhand knots (centimeter scale) with …
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Characterization of nonlinearity parameters in an elastic material with quadratic nonlinearity with a complex wave field
… in its stress-strain relationship. Different boundary conditions on the surface are considered that result in both one- and two-dimensional wave propagation problems. The goal of the research is to examine the generation of second-order frequency effects and static effects which may be used to …