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 794 for “"Drops"”.
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Coalescence of bubbles and drops
When two fluid drops come close enough together to touch, surface tension quickly pulls the drops together into one larger drop. This is an example of a singular fluid flow, as the topology of the interface changes at the moment of contact. Similarly, when a pair of bubbles touch, the surface …
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Surfact tension by pendant drops
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1938.
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Interfacial tension by pendant drops
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1938.
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Instabilities of volatile films and drops
… This instability is characterized by emission of drops ahead of the expanding front, with each drop followed by smaller, satellite droplets, forming the structures which we nickname "octopi" due to their appearance. A less volatile liquid, or a substrate of larger heat conductivity, suppress this …
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Particle Capture by Evaporating Cloud Drops
… near 30% relative humidity for cloud drops (56-93 (mu)m radius) with solid spheroidal particles of manganese hypophosphite (0.58-3.2 (mu)m radius) and near 90% relative humidity for drops (60-92 (mu)m radius) with hollow shells of lithium carbonate (2 (mu)m radius). In each …
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Contact and coalescence of viscous drops
When two fluid drops come into contact, surface tension quickly pulls the drops together into a single larger drop. This coalescence process is an example of a singular flow resulting from a topological transition, in this case between the disjoint and connected drops. In this thesis, we consider …
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Pressure drops through bubble cap plates
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Chemical Engineering, 1939
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Shadow of dew drops for piano trio
Shadow of Dew Drops for violin, violoncello and piano was inspired by a poetry of the Song Dynasty (960-1279) "Xiao Chi - A little Pond" written by the famous poet Yang Wanli (1127-1206). This poetry depicts: the silent mouth of a spring "cherishes" the little streamlet and lets it flow quietly …
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Scavenging of atmospheric particles by water drops
… of the flow field are then computed for water drops ranging from 0.1 to 1.0 mm in radius and for particle of 1 - 10 µ in radius. The results obtained in this work are in good agreement with experimental data given by Walton and Woolcock.</p> <p>In the second paper, the effects of intermolecular …
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Interaction of Drops falling into Volatile Liquids
The incidence of explosive melt-coolant interactions (MCIs) has prompted widespread research in an attempt to explain their cause. The conditions under which such explosions may occur is the subject of the present work. Experiments have been performed both in the laboratory and in the field using …
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Mass Transfer Characteristics of Large Oscillating Drops
… mass transfer of solute from large, oscillating drops in liquid-liquid systems has been critically reviewed. A thermostatically-controlled spray column, provided with mirrors, was used to study the hydrodynamics and mass transfer characteristics of single large oscillating drops and drop pairs …
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Nonlinear dynamics of simple and compound drops
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1985.
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Measuring the Momentum of Throughfall Drops and Raindrops
… the momentum and kinetic energy of throughfall drops in the field do not account for the drop's shape at impact or for the variations of the drop's velocity caused by chaotic air currents. The drop's shape at impact is critical because it influences the drop's measurable momentum, kinetic …
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Impact, spreading, and drying of complex fluid drops
A liquid drop impacting a surface leaves behind a footprint that encodes the history of its deformation, transport, and drying. Yet the final stain is not determined by impact alone. It emerges from a sequence of coupled processes—rapid inertial spreading, capillary-driven relaxation, contact-line …
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The drying of small drops of particulate slurries
The literature on the evaporation of drops of pure liquids, drops containing solids and droplet sprays has been critically reviewed. An experimental study was undertaken on the drying of suspended drops of pure water and aqueous sodium sulphate decahydrate with concentrations varying from 5 to 54. …
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Coalescence Behaviour of Liquid Drops at Solid Surfaces
The literature on droplet hydrodynamics and coalescence mechanisms in packed beds has been reviewed. The fundamentals of liquid-liquid and solid-liquid coalescence, and characterisation of 'wetting' or 'non-wetting' behaviour in liquid-vapour-solid systems by contact angles are summarised. Contact …
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Fluid mechanics of liquid drops and thin-films
… of the complex phenomenon exhibited by liquid drops and liquid thin-films. Studying these systems is important both from fundamental and applied science perspectives. The first topic of the dissertation is on using pendant droplet tensiometry to measure surface tension of biological fluid …
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Rates of evaporation of small drops at low pressures
… this research the rates of evaporation of small drops of diamyl sebacate were determined in the range of radii of 0.5 - 2.0 microns and for a range of pressures of 0.5 - 10 cm Hg. An expression is derived for the rate of evaporation and is compared with the rates determined experimentally. From …
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