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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 20 of 84 for “"Upscaling"”.
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Upscaling resilience: Waste as a resource
The dissertation explores the intersection between urban resilience, the emerging issue of privatized space in relation to food deserts, food waste and food loss which all make a contribution to food security. The context under investigation provided unique opportunities that allowed for the …
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Application of Dynamic Upscaling for Thermal Reservoir Simulation
Reservoir simulation is inherently an imperfect tool for forecasting. However, given sufficient analysis and post-processing, the areas of uncertainty can be quantified and effort can be made to mitigate their impact and improve the confidence in the prediction. The focus of the research documented …
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Upscaling effect in the preparation of metal hydride materials
The preparation of Ti-Zr based AB2 alloys where A=Ti, Zr ; B= Mn,Cr, Ni, Fe, V, Cu for use in hydrogen storage was investigated. In Ti-Zr based AB2 metal hydrides, the effects of composition, microstructure, and hydrogen sorption properties were examined using Scanning electron microscope (SEM), …
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Upscaling und Mehrgitterverfahren für Strömungen in heterogenen porösen Medien
Die Arbeit beschaeftigt sich mit Upscalingsverfahren und Mehrgitterverfahren fuer ein Mehrskalenproblem. Wir betrachten ein Modell fuer die Stroemung in einem heterogenen poroesen Medium, wie es in einem Grundwasserleiter vorliegt. Durch die Heterogenitaeten der Permeabilitaet des Bodens auf den …
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Numerical reservoir characterization using dimensionless scale numbers with application in upscaling
… The application of the dimensionless groups to upscaling was investigated using designed reservoir simulations to estimate dimensionless regions corresponding to different flow regimes. Analytical development, simulation runs and literature data were in good agreement. This application …
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A novel approach to upscaling reservoir simulation modelling for polymer processes
… their computational intensity necessitates upscaling methods to balance precision and efficiency. This research develops a comprehensive upscaling methodology specifically tailored for polymer flooding simulations, integrating both black oil and compositional simulation frameworks. A …
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Upscaling reactive transport in porous media : laboratory visualization and stochastic models
Solute transport models are essential tools for understanding and forecasting chemical concentrations in groundwater. Advection-dispersion based models can adequately predict spatial averages of conservative solute concentrations without using explicit maps of pore structures or variations in …
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Mathematical Analysis of Upscaling Well Log Data from Sonic to Seismic Resolution
Upscaling is an essential tool in microseismic studies, as it bridges the gap between the high-resolution well log measurements and low-resolution seismic observations. Various upscaling methods have been published and discussed, such as the Simple Averaging method, the Backus Averaging method, the …
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Bottom-up theoretical frameworks for upscaling transient mass transport in porous media
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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An approach for upscaling the flow effects of multiple deep-water genetic units
Developing a deep-water basin raises many issues and challenges; one of the most significant and necessary issues is overpressure prediction. Basin modelling to construct full scale models is an effective way to find out overpressure distribution in many conditions. However, with current modelling …
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Quality by Design Approach to Advanced Particle Engineering, Process Optimisation and Upscaling of Electrohydrodynamic Atomisation Technology
… emphasis on the need for further advancement and upscaling of the EHDA technology. The research presented in this thesis employed the use of EHDA technologies in the engineering of drug particles and application of QbD technique in its optimisation and subsequent upscaling of the process. The work …
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Nonequilibrium Phenomena in Multiphase Flow, Transport, and Phase Change in Porous Media: Pore-Level Physics, Network Modeling, and Upscaling
Multiphase fluid flow, multicomponent transport, and thermodynamic phase change in porous media are important for many subsurface environmental and energy applications, including vadose zone contaminant transport and shale oil and gas production. Understanding these complex physical processes …
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A Novel Automatic History Matching Method and Upscaling Study of Cyclic Solvent Injection Process for Post-Chops Heavy Oil Reservoirs
… six tests were employed to conduct a CSI upscaling study. The uncertainties in the upscaling CSI process, such as the relative permeability curve, capillary pressure, reaction rate in the foamy oil model and dispersion coefficient were investigated by numerical simulation. Sensitivity …
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Upscaling Lithology and Porosity Types from Microscopic to Core Domain with Thin Section Petrography, Dual Energy CT, and Rock Types: Creation of Diagenesis and Porosity Type Logs
Upscaling Lithology and Porosity Types from the Microscope to the Core with Thin Section Petrography, Dual Energy CT, and Rock Types: Creation of Diagenesis and Porosity Type Logs Authors: Jacob M. Proctor, André W. Droxler, Naum Derzhi, Heath H. Hopson, Paul (Mitch) Harris, Pankaj Khanna, and …
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Multi-Point Flux Approximations via the O-Method
… Flux Approximation (MPFA) methods and upscaling (or coarsening) grid techniques to these simulations. Specifically, the O-Method, a working MPFA method, is combined with local upscaling in order to solve for the pressure and flux values, bypassing the need to solve the given …
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Scaling and Correlation Functions to Map and Understand the Heterogeneity of the Productive Layer
… This multi-scale approach, both downscaling and upscaling to the solution is a two-step process based on the Pair Correlation Function (PCF) approximation method that takes into account the effect of scattering by considering the interactions between any two points of a heterogeneous medium. The …
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Formulation of targeted drug-loaded nanoparticles for lung cancer therapy
… to achieve desired physical characteristics and upscaling such method would prove to be economically unfeasible. Laboratory scale liposome purification methods such as dialysis and ultracentrifugation also suffer from similar limitation in upscaling. These challenges need to be overcame to …
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The influence of micro-porosity on drainage relative permeability using digital core analysis
… The results also prove that the proposed upscaling approach is superior compared to upscaling through the Laplace equation. Apart from the application for carbonates, which are well-known for their micro-porosity signatures, the approach proposed here might be applicable for image-based …
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Physical and Deep-Learning-Based Explorations of Microbe-Mediated Reactive Transport Processes in Porous Media Across Scales
… statistics from videos of particles and the upscaling of RT simulations. Overall, new tools and insights are provided to help improve environmental management strategies, such as bioremediation of contaminated groundwater or improved understanding of nutrient cycles in water systems.This …
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