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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 13 of 13 for “"Fluid jet"”.
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A Study of Fluid Jet Penetration
Made available in DSpace on 2014-12-05T19:16:02Z (GMT). No. of bitstreams: 1 6206162.pdf: 4532984 bytes, checksum: 211c8b815dc8bf94ae242b9a94eaaa13 (MD5) Previous issue date: 1962
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Influences of surfactant on the breakup of a fluid jet in viscous surrounding
… of insoluble surfactant on the breakup of a fluid jet surrounded by another viscous fluid at low Reynolds number is studied both theoretically and experimentally. Equations governing the evolution of the interface and surfactant concentration are derived using a long wavelength approximation …
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Turbulent fluid jet excavation in cohesive soil : with particular application to jet grouting
This thesis reviews the jet grouting methodology, and the current state of practice and research. Current methods of prediction of jet grout diameters are highly empirical and site specific, and do not take into account the jet hydrodynamics and soil properties explicitly. A rational model to …
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Mixing performance of a novel, continuous confined impinging jets mixer using competitive reactions
… flow apparatus featuring the impingement of fluid jet streams in the presence of ultrasonic energy provided by an ultrasonic probe was tested using competitive reactions in order to determine its mixing effectiveness. The ultrasonic energy enhances micromixing of the fluid jet streams, which …
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Numerical simulation of heat transfers on a circular cylinder by an impinging jet with nanofluid
Impinging jets are a best method of achieving particularly high heat transfer over a surface circular cylinder, flat plate and concave surface are subjects of interest in many research studies over the past decades. In terms of cooling surfaces in many engineering applications had been devised to …
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Photographic lens manufacturing and production technologies
… precision machining of aspherical lenses, fluid-jet polishing and magnetorheological finishing are pushing the boundaries of lens machining and its characteristic surface roughnesses to depths not seen before.
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Characterization and Control of an Electrospinning Process
Optical observations of jets provide information useful for control of electrospinning of polymer solutions. Combinations of videography, stereography, and methods for illumination of the multiple coils of an electrospinning jet path, that depend on bright glints of reflected light from the jet, …
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Design of an Original Methodology for the Efficient and Economic Appraisal of Existing and New Technologies in Form Grinding Processes including Helical
… to reduce the need for a high pressure grinding fluid jet and allowing less turbulent flow to enter the grinding nip at lower pressures. A preliminary cost model was created with inputs that relate to form grinding and allow the user to investigate different process parameters and arrive at a …
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Formation of polymer nanofibers from electrified fluid jets
The formation of polymer nanofibers from fluid jets in· an electric field, also referred to as electrospinning, has been studied. Controlling the fiber properties requires a detailed understanding of how a millimeter-diameter fluid jet emanating from a nozzle is transformed into solid fibers that …
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Needle-free injection nozzle geometry
… of pandemic influenza or bioterror emergencies. Jet injection, wherein drug is propelled at high pressure through a narrow orifice to create a high-speed fluid jet sufficient to penetrate tissue, is one of several needle-free methods for administration of drug. Despite promising research and …
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LES of Jets and Sprays Injected into Crossflow
… of this thesis is to numerically simulate a fluid jet injected into a crossflow of the same or another fluid, respectively. Such flows are encountered in many engineering applications in which cooling or mixing plays an important role, e.g. gas turbine combustors. The jet in crossflow (JICF) …
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A Computational Study on the Structure, Dynamics and Mechanoelectric Transduction of Vestibular Hair cell
… response of hair bundles in the endolymph fluid, I have included fluid drag in the model. Link nonlinearity has been added to reflect recent observations (Tsuprun 2003). The lateral links stiffen as they stretch and prevent contact between stereocilia when they compress. In addition to …
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A Computational Model for Two-Phase Ejector Flow
… task. The CFD code is based on a parabolic two-fluid model. The applicable two-phase flow conservation equations are presented. Also described are the interfacial interaction terms, important in modelling non-equilibrium effects. Other features of the code, such as a mixing length turbulence …