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 1028 for “"Droplet"”.
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Droplet generator
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1979.
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Characterization of droplet flight path and mass flux in droplet-based manufacturing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Modeling of Droplet Interactions
Sprays in praktischen Anwendungen bestehen aus vielen Troepfchen. Das Verhalten eines Troepfchens haengt stark von den benachbarten Troepfchen ab, wenn der Abstand zwischen beiden in der Groessenordnung des Troepfchendurchmessers liegt. In Spray-Berechnungen wird die Interaktion zwischen Troepfchen …
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Identifying droplet boundaries: impacts of surface topography on droplet freezing and an investigation of the impacts of surfactant on sprayed droplet dynamics
The formation and behavior of droplets is critical in many applications, including freezing [1-8], irrigation [9-11], heat transfer [12-14], spread of disease via respiratory droplets [15, 16], and precipitation [6, 17]. There are two research foci of this dissertation: 1) condensing droplets …
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Droplet solidification and its effects on deposit microstructure in the uniform droplet spray process
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Mathematical modelling of droplet evaporation
… theoretical modelling and analysis of sessile droplets of liquids as they evaporate in different modes of evaporation. The thesis focuses on diffusion limited evaporation in which the diffusion of vapour in the surrounding atmosphere governs the evaporation rate of the droplet.;First, we …
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Droplet behaviour in microfluidic devices
… the end user, we have three different T-junction droplet generator devices, with similar geometries. We start investigating by generating water droplets in an oil medium. They self-organise into various flow patterns: single-profile, double-helix profile and triple-helix profile. We document how, …
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Inertial Effects in Droplet Motion
Made available in DSpace on 2014-12-13T19:55:35Z (GMT). No. of bitstreams: 1 8009182.pdf: 1307078 bytes, checksum: e3abb7ba6c589d3559ac4948afaf1efd (MD5) Previous issue date: 1979
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Droplet evaporation dynamics on surfaces
Droplet evaporation governs many man-made and natural processes. Hence, it has been widely studied by many scientists over the past century. With the recent advancements in nanotechnology, many surfaces for two phase heat transfer have been developed including hydrophobic, biphilic and …
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Oscillating Dispersed-Phase Co-Flow Microfluidic Droplet Generation: Effects on Jet Length and Droplet Size
Droplet-based microfluidics have emerged as versatile platforms offering unique advantages in biology and chemistry. Although there is adequate control on size and monodispersity, most conventional microfluidic techniques cannot generate more than one droplet size at a time in a continuous and …
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Direct numerical simulation of bubble-bubble and droplet-droplet interaction using a Surface Thin Film model
… where particles could either be bubbles or droplets; rigid particles are not considered. The model is tested against experimental results from binary collision of hydrocarbon droplets. Good qualitative numerical results are obtained at a practical computational cost.
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Evaluation of an adaptive control algorithm for use in uniform droplet spray in droplet based manufacturing
… control system for potential use in a Uniform Droplet Spray Process. First, an adaptive control algorithm was derived. Then, this algorithm and the existing integral control algorithm were coded for use in MATLAB simulations. The simulations were performed against each other over various …
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Droplet-based Two-phase Thermal Management
… new advanced thermal management methods. Droplet-based two-phase thermal management technologies are considered promising solutions to conquer the cooling challenges in the electronic industries. The heat transfer behavior of droplets is based on several important fundamental processes, …
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Single droplet combustion of alternative fuels
… including butanol and biocrude from Algal. Droplet combustion experiments were performed to analyze the combustion characteristics of the fuels. Using the suspended droplet method, various droplet sizes were tested. The results show that combustion progresses through distinct stages: …
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Black Liquor Droplet Combustion and Modeling
… and steam for the paper mill. Black liquor droplet combustion rates and mechanisms dictate many aspects of recovery boiler performance. This investigation documents new experimental data on single droplet pyrolysis and combustion in a laboratory furnace that mimics many of the essential …
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Comprehensive Black Liquor Droplet Combustion Studies
… and recover inorganic materials. Black-liquor-droplet combustion is fundamental to understanding and potentially improving recovery boiler performance. This investigation reports comprehensive experimental data collected for a suite of five liquors. All the data were collected with …
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Enhanced coalescence-induced jumping droplet departure
… in recent years due to its ability to shed water droplets at length scales three decades smaller than the capillary length (~ 1mm) via coalescence induced droplet jumping. Jumping-droplet condensation has been demonstrated to enhance heat transfer, anti-icing, and self-cleaning efficiency, and is …
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Droplet Drag Modeling on Spray Conditions
… have been conducted to investigate the effect of droplet deformation and internal circulation on droplet dynamics. Although droplet drag is a classical area of study, there are still theoretical gaps in understanding the motion of large droplets. In applications such as spray combustion, droplets …
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Agricultural spray droplet dispersion in turbulent windflow
… arising from removal of small (diameter < 100 m) droplets from sprays by atmospheric or vehicle-generated cross flows, is investigated experimentally. The primary requirement for realistic wind tunnel studies is identified from background review as matching the full-scale logarithmic man velocity …
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