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 11 of 11 for “"DROPLET DISTRIBUTION"”.
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Development of a Novel Planar Mie Scattering Method for Measurement of Spray Characteristics
The work herein details an optical droplet measurement system based on planar multi-angle Mie scattering. Sizing information consists of a mean droplet diameter and droplet distribution estimates for every individual point within a planar (2D) area of interest. The planar method makes possible the …
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Water droplet growth enhancement through thermal radiation
… explores how thermal radiation affects water droplet growth in the 20 to 100 μm size range. The theory of mass and energy transfer involving thermal radiation for a single droplet is presented. This theory is then extended to predict droplet growth for a given droplet distribution exposed to a …
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The effect of surface wettability on frost growth and densification on flat plates
… is high during the condensation phase, then the droplet distribution at incipient freezing is dominated by small droplets and a narrow size range. Conversely, if the cooling rate is low during the condensation phase, then the droplet distribution at incipient freezing follows established …
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Experimental investigations of the effects of surfactants on droplet production by bubbles rising to a free surface.
… a liquid, burst at the free surface and eject droplets into the air. The liquid droplets produced from the bursting of air bubbles at the free surface of the ocean have long been considered as constituting a significant fraction of the marine aerosol production. This process plays an important …
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Effects of the hydrophobic coating on the initiation of frost formation.
The growth and freezing process of water droplets forming on hydrophobic coated surface were investigated by using a digital high-speed microscopy system. The images indicated that hydrophobicity of surfaces can affect the fusion of inter-droplets to form some relative dry areas between droplets …
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Heat transfer through a condensate droplet on hydrophobic and nanostructured superhydrophobic surfaces
… In this thesis, we reconcile classical droplet growth modeling barriers by utilizing two-dimensional axisymmetric numerical simulations to study individual droplet heat transfer on non-wetting surfaces (90° < θ_a < 170°). Incorporation of an appropriate convective boundary condition at …
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Effect of mobile phase additives on linearity in particle beam lc/ms
… for the nonlinearity of PB LC/MS. For a given droplet distribution, reducing the concentration of the analyte results in reduced particle size. Application of a high pass filter to a particle distribution replicates response factor and signal obtained by PB LC/MS. In addition, a mathematical …
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Design and Validation of a High-Bandwidth Fuel Injection System for Control of Combustion Instabilities
… was due to fluctuating vorticity and temporal droplet distribution effects.
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Simulations of droplet dispersion in the wakes of cylinders and icing tunnel spray bars
Simulations of droplet dispersion behind cylinder wakes and downstream of icing tunnel spray bars were conducted. In both cases, a range of droplet sizes were investigated numerically with a Lagrangian particle trajectory approach while the turbulent air flow was investigated with a hybrid …
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Dropwise condensation of water and low surface tension fluids on structured surfaces
… condensation in heat transfer owing to the droplet shedding effects which can efficiently reduce thermal resistance, filmwise condensation still dominates industrial applications currently due to the high costs, low robustness and technical challenges of manufacturing dropwise coatings. …
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ΜΕΛΕΤΗ ΔΑΚΤΥΛΙΟΕΙΔΟΥΣ ΔΙΦΑΣΙΚΗΣ ΡΟΗΣ ΣΕ ΟΡΙΖΟΝΤΙΟ ΑΓΩΓΟ
TIME RECORDS HAVE BEEN COLLECTED OF LOCAL LIQUID FILM THICKNESS, USING PARALLELWIRE CONDUCTANCE PROBES, IN A NEW 50.8 MM I.D. PIPE LOOP. STATISTICAL ANALYSISOF THESE RECORDS ALLOWS THE STUDY OF CIRCUMFERENTIAL VARIATION OF TIME-AVERAGED THICKNESS AND OF OTHER QUANTITIES. THE POWER SPECTRA SHOW THAT …