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 “"fluid flow behavior"”.
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Fluid flow behavior of semi-solid aluminum at high shear rates
The rheological behavior and microstructure of semi-solid aluminum alloys were studied using a novel apparatus, the Drop Forge Viscometer (DFV). The viscometer determines force from the curvature of displacement data allowing calculations of viscosities at shear rates in excess of 1000 s-1. …
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Investigation of fluids flow behavior in nano-scale channels by using optic imaging system
… in nanometer (nm) range. The physics of fluid flow in nanopores is poorly understood. Knowing the fluid flow behavior in the nano-range channels is of major importance for stimulation design, gas production optimization and calculations of the relative permeability of gas in tight shale …
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Experimental study of heat transfer and fluid flow in unsaturated porous media
… was conducted to investigate thermal and fluid flow behavior in an unsaturated porous medium. The experiment consisted of a bed of homogeneous glass beads packed uniformly in a Lexan rectangular box. A cylindrical heat source was located horizontally in the middle region of the bed and the …
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Building, Updating and Verifying Fracture Models in Real Time for Hard Rock Tunneling
… and fracture networks govern the mechanical and fluid flow behavior of rock masses. Tunneling and other rock mechanics applications therefore require the characterization of rock fractures based on geological data. Field investigations produce only a limited amount of data from boreholes, …
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Pressure Pulsing Potential During Waterflooding and CO2 Flooding of Heavy Oil Reservoirs
… of the hydrocarbons or reservoir, it changes the flow behavior and displacement mechanism. PPT has traditionally been used during waterflooding, but due to positive results of heavy oil displacement with CO2 and new GHGs emissions regulations, which provide GHG credits for CO2 usage in EOR and CO2 …
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High fidelity numerical investigations of tailored magnetic fields for defect reduction in continuous casting of steel
… of inclusions are a function of transient fluid flow behavior in the mold along with the inclusion properties. This thesis focuses on better understanding of mold flow with Electromagnetic Braking (EMBr), which is an attractive method due to its non-intrusive nature. EMBr greatly influences …
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Integrated multiphase flow modeling in wellbore for downhole pressure predictions
… of various disciplines that pertain to the flow of fluids within a conduit, knowing the bottomhole flowing pressure (P_wf) and pressure profile in the wellbore are of undeniable significance. One would ask why not deploy downhole pressure gauges to obtain P_wf readings. Unfortunately, it is …
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Modeling and Simulation of Large Scale Stirred Tank
… were used to evaluate the structure of the flow field and the power demand of the agitator. The results from the numerical models were compared with empirical data collected from these pilot plants that had been operated at an earlier date.</p><p>Mixing is commonly used in a variety ways …
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LABORATORY-SCALE INVESTIGATION OF PERMEABILITY AND FLOW MODELING FOR HIGHLY STRESSED COALBED METHANE RESEROVIRS USING PULSE DECAY METHOD
The steady flow method (SFM), most commonly used for permeability measurement in the laboratory, is not applicable for tight rocks, higher rank coals and coals under highly stressed condition because of the difficulty in measuring steady-state gas flowrates resulting from the tight rock structure …
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Computations of bubble dynamics with heat transfer
Gas-liquid flows with heat transfer play an important role in many natural and industrial processes such as combustion, petroleum refining. In particular, the heat transfer enhancement caused by air bubble motion is of practical interest in many industrial applications ranging from boiling solar …
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Effect of surfactants and brine salinity and composition on spreading, wettability and flow behavior in gas-condensate reservoirs
… severe impairment of gas productivity as the flowing bottom-hole pressure falls below the dew point in gas-condensate reservoirs. Hence, this study attempts to investigate the concept of modifying the spreading coefficient and wettability using low-cost surfactants in the near wellbore region, …