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Full-Text Articles in Civil and Environmental Engineering
The Development And Numerical Modelling Of A Representative Elemental Volume For Packed Sand, Ashraf Thabet
The Development And Numerical Modelling Of A Representative Elemental Volume For Packed Sand, Ashraf Thabet
Electronic Thesis and Dissertation Repository
The motivation of this thesis is the development of simple microscopic-scale model (representative elemental volume; REV) that can be used to conduct flow and heat transfer simulations from which closure coefficients can be established for the volume-averaged transport equations for porous media (packed bed). The thesis provides a brief introduction to the computational technique adopted for the geometric generation of the REV (YADE), followed by a parametric study undertaken to reveal the minimum number of particles inside the REV that are required to mimic the appropriate physics. Additional analysis was conducted with the goal of determining the influence of deviation …
Combined Analysis Of Tide- And Wave-Induced Water Table Fluctuations For Structural Characterization Of A Coastal Aquifer, Victoria A. Trglavcnik
Combined Analysis Of Tide- And Wave-Induced Water Table Fluctuations For Structural Characterization Of A Coastal Aquifer, Victoria A. Trglavcnik
Electronic Thesis and Dissertation Repository
Understanding of coastal hydrogeology is essential for the assessment, management, and protection of coastal groundwater resources. Coastal groundwater is often an important source of drinking water for coastal communities but can be contaminated by saltwater or human-derived contaminants. The groundwater table in coastal aquifers fluctuates in response to various oceanic pressure forces acting at the shoreline, including tides, individual waves, and offshore storms. Measurements of water table fluctuations in response to tides and waves can be used to characterize coastal aquifers and provide important insight into the hydraulic properties and structure, including the connectivity between the aquifer and ocean. Most …
Starx Technology For Waste Oil Sludge Treatment Investigated With Numerical Modelling, Rebecca L. Solinger
Starx Technology For Waste Oil Sludge Treatment Investigated With Numerical Modelling, Rebecca L. Solinger
Electronic Thesis and Dissertation Repository
Growing stockpiles of industrial liquid waste stored in lagoons are an outstanding problem worldwide. Self-sustaining Treatment for Active Remediation (STAR) is an emerging technology based on smouldering combustion that has been successfully deployed for in situ remediation of field sites (Grant et al., 2016). STAR is currently being developed as an ex situ treatment system (STARx) for industrial wastes by intentionally mixing them with sand. One engineering concept for STARx is the “hotpad”, for which some initial experiments have been conducted. However, a thorough experimental investigation is challenging due to the cost and time associated with each experiment. This work …