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 246 for “"flow visualization"”.
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Flow visualization of cavitation
… This new refrigeration loop utilizes water flowing through a nozzle, initiating cavitation. Cavitation is generally defined as creating vapor from liquid, not through adding heat, but by decreasing the pressure. In a converging/ diverging nozzle, as the cross sectional area is constricted, …
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Shear flow visualization at high Reynolds Numbers
… efforts were concentrated on the study of flow in the wake and near the bow of the model DDG-51 Destroyer (5514). Qualitative and quantitative flow visualization methods were adapted, designed and implemented including ship-fixed and tank fixed streak videography and Digital Particle Image …
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Capillary Pumped Loop Performance Investigation through Flow Visualization
… heat pipes, CPLs separate the liquid and vapor flows such that counterflow is eliminated. A key failure mode of a CPL is called deprime. This is where the liquid feed to the capillaries is interrupted, resulting in the loss of the meniscus from the pores of the wicking material. CPLs are used in …
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Fluorescent gaseous tracers for three dimensional flow visualization.
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 1972
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Flow visualization study of the inlet vortex phenomenon
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Jet mixing: the role of numerical flow visualization
… further enhanced by using the tool of numerical flow visualization to explore the results of numerical simulations and linear stability analysis. Because the results of preliminary numerical flow simulations were so topologically complex, linear stability analysis (LSA) was employed to generate …
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Lagrangian-based Simplification and Feature Estimation for Flow Visualization
… different dynamical systems. Their analysis and visualization is of paramount importance to those applications. There are two different representations of vector field (or flow) data, i.e., the Eulerian representation and the Lagrangian representation. Recently, the Lagrangian-based flow …
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Hydrodynamic Drag and Flow Visualization of IsoTruss Lattice Structures
… configurations of IsoTruss® lattice structures. Flow visualization of prototypical IsoTruss® wind towers was also performed using Particle Image Velocimetry instrumentation. The drag test and flow visualization specimens included 6-node and 8-node configurations, single and double-grid …
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Reactive flow visualization through high-speed optical laser diagnostics
… laser diagnostics to visualize: 1) The turbulent flow field with particle image velocimetry (PIV); and 2) the distribution of combustion radicals, by planar laser-induced fluorescence (PLIF). This allows for the visualization of the flame surface behavior, while at the same time linking it to …
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Photoacoustic imaging system for fluid flow visualization and biological tissues characterization
… PA imaging system for investigation of fluid flow and photoacoustic signatures of biological tissues using a continuous laser beam of output wavelength 633 nm to deliver light to the targeted tissue samples and fluid. The resulting acoustic signal detected by a transducer was used to determine …
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Heat transfer and flow visualization in natural convection in rapidly spinning systems
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1984.
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Flow visualization study of the intake process of an internal combustion engine.
Thesis. 1979. Ph.D.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Studies of combustion and crevice gas motion in a flow-visualization spark-ignition engine
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Experimental investigation of small-scale breaking waves : flow visualization across the air-water interface
… waves and examine the combined air-water flow fields using advanced visualization techniques. This research was performed in a narrow wavetank which was 2.5m long. Waves were generated with a hinged paddle and breaking occurred as the train propagated up a 15 degree slope to a level …
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Flow Visualization Study of Wake-Stabilized Diffusion Flames in a Crossflow: Effects of Crossflow Turbulence
… of crosswind turbulence on the mechanisms and flow structures affecting emissions from non-premixed wake stabilized flames from elevated stacks are investigated. In the current work, two conditions of upstream crossflow are tested to investigate the effects of turbulence on the flame, including …
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An Experimental Spatio-Temporal Analysis of Separated Flows Over Bluff Bodies Using Quantitative Flow Visualization
… to study three-dimensional unsteady turbulent flow fields such as the wakes of bluff bodies, a Digital Particle Image Velocimetry (DPIV) system was developed. This system allows non-intrusive two-dimensional and time varying velocity measurements. Software and hardware modifications necessary …
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Simultaneous flow visualization and local heat transfer measurements of two-phase flow in plate heat exchangers
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01
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Design of a free-running, 1/30th Froude scaled model destroyer for in-situ hydrodynamic flow visualization
Hydrodynamic flow visualization techniques of scaled hull forms and propellers are typically limited to isolating certain operating conditions in a tow tank, circulation tunnel, or large maneuvering basin. Although cost effective, these tests provide a limited perspective on the interactions of the …
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Development of a geometric model for the study of propagating stall inception based on flow visualization in a linear cascade
Flow visualization movies of flow through a cascade of compressor blades showed propagating stall at stagger angles of 36.5 and 45 degrees for angles of attack of 20 degrees and higher. At a stagger angle of 25 degrees, the development of a steady, separated boundary layer occurred with no …
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Modernized Approach For Generating Micro-Layering And Macro-Heterogeneous Structures In Porous Media For Use In Transmitted-Light Method Flow Visualization Experiments
Image capturing in flow experiments has been used for fluid mechanics research since the early 1970s. Interactions of fluid flow between the vadose zone and permanent water table are of great interest to researchers because this zone is responsible for all recharge waters, pollutant transport and …
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