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Showing 1 to 20 of 285 for “"air-water"”.
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Air-water transfer at wavy interfaces
Gas-water exchange is usually controlled by a thin surface layer in the liquid just beneath the interface. The structure and dynamics of the interface profoundly influence the rate of mass transfer. Of particular importance to environmental and climatical cycles is the large (3 to 5 fold) …
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Experimental Investigations of Internal Air-water Flows
… flow rates were collected in vertical upwards air-water flow at near-atmospheric pressure. It was demonstrated that the probability density function of the normalized differential pressure was indicative of the flow regime and using non-linear dimensionality reduction (the Elastic Maps …
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Free-surface turbulence and air-water gas exchange
… thesis investigates the physical mechanisms of air-water gas transfer through direct measurements of turbulence at the air--water interface. To enable this study, a new approach to the particle image velocimetry (PIV) technique is developed in order to quantify free-surface flows. Two aspects of …
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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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Crossing the Air-Water Interface: Inspiration from Nature
… aims to contribute toward the understanding of water-entry and -exit behaviors in nature. Since water is nearly a thousand times denser than air, transitioning between the two mediums is often associated with significant changes in force. Three topics with implications in water-entry are …
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Locomotion of Skittering Frogs at the Air-water Interface
Many animals interact with the air-water interface during locomotion. Such location either involves moving through the water's surface or moving atop the water surface. This dissertation aims to investigate both of these forms of locomotion in frogs. First we quantified the kinematics of …
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Perturbation Solution of Air-Water Mixture for Jet Noise Reduction
… jet-noise mitigation using externally positioned air–water curtains that attenuate radiated sound without altering the underlying jet dynamics. Two classes of multiphase media are examined: a gaseous carrier phase containing dispersed liquid droplets, and a liquid carrier phase containing …
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Modelling Transient Air-water Flows in Civil and Environmental Engineering
… improving the understanding and description of air‐water interactions in transient flows. A particular emphasis is set on phenomena relevant in civil and environmental engineering, like rivers, pipes, and hydraulic structures. Theoretical results of this doctoral research may be summarized in …
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Interfacial Structure for a Horizontal Co-Current Air-Water Flow
Made available in DSpace on 2014-12-05T17:15:38Z (GMT). No. of bitstreams: 1 6202933.pdf: 4736192 bytes, checksum: 5c3e7462737573b8125ede5e81e31bc4 (MD5) Previous issue date: 1962
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Visualization of Near-Surface Flow Patterns for Air-Water Gas Transfer
… = O(10^6) ) by chemical reaction directly at the water surface. While different chemical systems were tried, best results were achieved using the precipitate AgCl, formed by AgNO 3 in the water body and a controlled influx of HCl gas. Trace amounts of precipitate are made visible by scattering …
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The study of gas absorption at a wavy air-water interface
ETDs are only available to UIUC Users without author permission
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One-dimensional analysis of steady-flow air-water mixtures in pipes
Thesis (Nav.E.) Massachusetts Institute of Technology. Dept. of Naval Architecture and Marine Engineering, 1953.
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A study of liquid mass transport in annular air-water flow
Massachusetts Institute of Technology. Dept. of Nuclear Engineering. Thesis. 1967. Sc.D.
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Surface Characterization of Poly (epsilon-caprolactone) at the Air/Water Interface
… (PCL) have been studied at the air/water interface (A/W). PCL is a hydrophobic and crystalline polyester with a glass transition temperature around -60 degrees centigrade, a melting point around 55 degrees centigrade, excellent biocompatibility, and low toxicity. In the past …
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Macromolecular Reactions and Sensory Perception at the Air-Water-Human Interface
… 20th century main concern was to have sanitary water flowing through the tap. In 21st century constant supply of safe drinking water is common at any home in USA. Hence consumers pay attention to aesthetic quality of tap water. Odorous algal metabolites in source water and metals introduced to …
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Model membrane interactions with ions and peptides at the air/water interface
… occurring in nature. The lipid monolayers at the air/water interface are suitable model systems to mimic biological membranes since many parameters can be easily controlled. In the present work the lipid monolayers were used as a model membrane and their interactions with two different peptides …
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Static and dynamic properties of soluble surfactants at the air/water interface
… tail. The headgroup is polar or ionic and likes water, the tail is typically an aliphatic chain that cannot be accommodated in a polar environment. The prevailing molecular asymmetry leads to a spontaneous adsorption of amphiphiles at the air/water or oil/water interfaces. As a result, the …
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Hydrodynamics and gas holdup in a cocurrent air-water-fiber bubble column
… may be found in other industrials, such as wastewater treatment, food processing, biological organism production, and pharmaceutical manufacturing;Flocculated fiber suspensions are considered as mixtures of fiber and suspending liquid with network structures comprising flocs and inter-floc …
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