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 125 for “"Fluid Properties"”.
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Investigation of fluid properties at non-ambient conditions
… use of iso-octane and heptadecane as reference fluids. Compressibility factors of these were represented by Tait-style equations. An iterative solution technique was developed to allow the corresponding states method to be applied to diesel fuelsusing limited density measurement and a guess …
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Extracting fluid properties through high-speed video analysis
… a non-contact method to measure changes in fluid properties by analyzing refractive motion in high speed video. We present a method of extracting fluid properties by performing video motion analysis using an automated wavelength matching filter followed by fitting of the measurements to …
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Effects of Fluid Properties on the Dynamics of Mosquitoes' Ingestion Pumps
… Specifically, we investigated the effect of fluid viscosity on the sugar-feeding behavior and the pumping dynamics of males and females via force-feeding assays and electromyography (EMG) recording. Results showed varied pumping contraction frequencies among mosquito species and sexes that …
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Molecular understanding of osmosis and a multiscale framework to investigate confined fluid properties
Understanding the fluid structure and behavior in nanoscale confinements is of major importance in a wide variety of applications including biological and engineering devices. A critical biological application in which the physics at the nanoscale is important is osmosis. Critical functions of life …
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Effect of varying reservoir fluid properties on material balance calculations, Bu-Attifel oil field, Libya
Includes bibliographical references.
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Deep learning for size-agnostic two-phase flow simulation with realistic pore structures and rock-fluid properties
… limited training datasets, and fixed rock-fluid and flow parameters. In this work, I develop deep neural networks as data-driven proxy models for generating phase distributions during a two-phase, capillary-dominated drainage process, where a non-wetting phase invades a …
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In-Depth Study of Different Magnetorheological Fluid Properties Under Different Operating Parameters, and in Presence of Organic Additives
… of a magnetic field makes magnetorheological fluids (MRFs) a valuable material for various damping systems. As MRFs form chains, MRFs transit from a liquid state to a solid-like state exhibiting an increase in viscosity. Since MRF discovery, commercialization, and enhancement of MRF …
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Silicification across the Betze-Post Carlin-type gold deposit: Clues to ore fluid properties and sources, Northern Carlin Trend, Nevada
Ore fluid properties and sources at the Betze-Post deposit, the largest Carlin-type gold system in the world (∼49 million ounces Au), are not well understood. To improve knowledge of ore fluids, the geochemical, textural, and fluid inclusion characteristics of ore, late-ore, and post-ore quartz …
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A development of regression models for predicting two-phase relative permeability in consolidated rock
… data along with the corresponding rock and fluid properties were collected, and stepwise linear regression analysis was applied. Relative permeability models were developed in terms of rock and fluid properties. </p> <p>The prediction models were tested against laboratory values and …
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Modelling and Simulation of Carbon Dioxide Transportation in Pipelines: Effects of Impurities
… are employed in the transportation of CO2. CO2 fluids contain impurities that affect the fluid properties and flow dynamics, but pipelines are mostly designed assuming that the CO2 fluid is pure. CO2 pipeline fluids contain at least 90 % CO2 with the balance made up of impurities. The impurities …
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Design and real-time process optimisation of steam assisted gravity drainage for improved heavy oil recovery.
… environment. Understanding the reservoir and fluid properties and developing new technologies help the industry to reduce the risk in developing non-conventional fields. A major problem in heavy oil field is to understand the behaviour of heavy oil. The viscous oil flows sluggishly in the …
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Thermally driven visco-elastic measurement technique via spectral variations in scanning probe microscopy cantilevers
Understanding how fluids respond to various deformations is of great importance to a spectrum of disciplines ranging from bio-medical research on joint replacements to sealing technology in industrial machinery. Specifically, this work addresses the need for probing interfacial rheology to …
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Effect of compressibility, suction, and heat transfer on the nonparallel stability of boundary-layer flows
… Pressure, temperature, density, and transport properties as well as 'variations of the fluid properties with temperature. The method of multiple scales is used to account for the nonparallelism of the mean flow and equations are derived for the evolution of the disturbance amplitude and wave …
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Behavior of Magneto-Rheological Fluids Subject to Impact and Shock Loading
… design of controllable magnetorheological (MR) fluid devices have focused heavily on low velocity and low frequency applications. The extensive work in this area has led to a good understanding of MR fluid properties at low velocities and frequencies. However, the issues concerning MR fluid …
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The influence of vapor pressure on droplet contact dynamics on smooth surfaces.
… impact experiments were performed with different fluids using Total Internal Reflection Microscopy (TIRM) on a smooth surface to gain insight into the mechanism for the air film failure of volatile liquids. Several parameters were varied including the impact velocity and droplet volatilities to …
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Rheological properties, stochastic characteristics, and second law violations of atomic fluids in Couette flow
Fluids treated as a discrete collection of particles rather than as a continuum, exhibit exotic properties under shear at sub-continuum scales. For instance, at a critical strain-rate, the fluid becomes non-Newtonian owing to an ordering transition and the thermodynamic entropy production can be …
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A comparison of thermal storage models with a solar electric generation system using Trnsys
… with one inlet and one outlet that evaluates fluid properties as a function of temperature is representative for all three models. The second component is a storage controller that passes along pertinent charging, dwell or discharging information to the storage and integrates the storage into …
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A modal analysis method for a lumped parameter model of a dynamic fluid system
… model is developed for the analysis of dynamic fluid systems and the techniques of modal analysis are applied. An introduction to the lumped parameter modeling approach is accomplished by a thorough review of the dynamic mechanical system. This review of mechanical system analysis introduces …
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Condensing heat transfer within horizontal tubes
… of vapor velocity, temperature difference and fluid properties upon the heat transfer coefficient of a vapor condensing within a horizontal tube. Condensing heat transfer coefficients for propane were measured over a wide range of conditions. The data would not correlate using the existing …
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