Browsing Theses by Title
Now showing items 10126-10145 of 15526
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Numerical Modeling of Failure in Magnesium Alloys under Axial Compression and Bending for Crashworthiness Applications
(University of Waterloo, 2012-01-23)Numerical modeling of failure was performed for magnesium alloys with circular and square cross-sections under axial compression. The failure criterion was employed using material model 124, where failure was simulated ... -
Numerical Modeling of Financially Sustainable Urban Wastewater Systems
(University of Waterloo, 2016-08-02)A system dynamics model first developed using the software Stella 7.0.2, which explores the complex behavior of the financially sustainable management of water distribution infrastructure, was converted here into a system ... -
Numerical Modeling of Flexible ZnO Thin-Film Transistors Using COMSOL Multiphysics
(University of Waterloo, 2013-07-26)Increasing attention has been directed towards the development of optically transparent and mechanically flexible thin film transistors (TFTs) and associated circuits based on the transition metal oxides. These flexible ... -
Numerical Modeling of Methane Decomposition for Hydrogen Production in a Fluidized Bed Reactor
(University of Waterloo, 2014-08-21)The decomposition of methane for hydrogen production is an attractive alternative to the established method of reforming. This process considerably reduces the emission of greenhouse gases, and its overall efficiency and ... -
Numerical Modeling of Multiphase Flows with Applications to the Automotive Industry
(University of Waterloo, 2015-06-24)Multiphase flows have become an issue of deep concern in the automotive industry. Two specific problems of concern to the ABC Group and Ford Motor Company have shown that the current multiphase models available in commercial ... -
Numerical Modeling of Nonlinear Problems in Hydraulic Fracturing: Fracture Propagation, Proppant Transport, and Shear Dilation
(University of Waterloo, 2020-05-05)Hydraulic fracturing is a stimulation technique in which fluid is injected at high pressure into low-permeability reservoirs to create a fracture network for enhanced production of oil and gas. It is the primary purpose ... -
Numerical Modeling of Permafrost in Heterogeneous Media
(University of Waterloo, 2020-03-05)Interest in numerical modeling of permafrost has increased over the past decade due to accelerating rates of permafrost thaw. Discontinuous permafrost regions are particularly susceptible to climate change since small ... -
Numerical Modeling of Soil Gas Mobility in Shallow Unsaturated Zones
(University of Waterloo, 2021-05-20)In 2016, greenhouse gases (GHG) released from agricultural soils were estimated to be between 19 and 24 megatonnes of carbon dioxide equivalent with an increasing temporal trend. The processes controlling soil gas mobility ... -
Numerical Modeling of Whiplash Injury
(University of Waterloo, 2010-11-24)Soft tissue cervical spine (neck) injuries, known as ‘whiplash’, are a leading cause of injury in motor vehicle collisions. A detailed finite element (FE) model of the cervical spine that is able to predict local tissue ... -
Numerical Modelling of Reinforced Concrete Walls Encased in Polyvinyl Chloride Stay-In-Place Formwork
(University of Waterloo, 2015-09-25)In structurally participating formworks, a new forming technique for reinforced concrete, referred to as stay-in-place formwork has recently emerged as a viable technique. This permanent new formwork system simplifies the ... -
Numerical Modelling of the Effects of High Strain Rate, Strain Path and Particles on the Formability of FCC Polycrystals
(University of Waterloo, 2010-01-11)A new crystal plasticity scheme for explicit time integration codes is developed based on a forward Euler algorithm in the first part of this paper. The new numerical model is incorporated in the UMAT subroutine for ... -
Numerical Modelling of the Human Cervical Spine in Frontal Impact
(University of Waterloo, 2006)Motor vehicle accidents continue to be a leading cause of cervical spine injury despite a conscientious effort to improve occupant safety. Accurately predicting occupant head and neck response in numerical crash simulations ... -
Numerical Modelling of Wind Storms in the Lower Great Lakes
(University of Waterloo, 2019-01-07)Convective storms are incredible meteorological events; the impact of just one storm can be extreme and widespread. On July 21 1998, a convective storm formed west of Lake Michigan, moving quickly across the lower Great ... -
Numerical Prediction of Jet Noise Using Compressible Lattice Boltzmann Method
(University of Waterloo, 2020-01-23)Computational fluid dynamics (CFD) encompasses a variety of numerical methods. Some depend on macroscopic model representatives, which are solved by finite volume, finite element or finite difference method, while others ... -
Numerical Prediction of Panel Dent Resistance Incorporating Panel Forming Strains
(University of Waterloo, 2001)This thesis presents a numerical method of predicting both static and dynamic denting phenomena in automotive body panels. The finite element method is used as a predictive tool to assess panel performance prior to ... -
The Numerical Prediction of the Dent Resistance of Aluminum Structural Panel Assemblies
(University of Waterloo, 2001)An examination of static and dynamic dent resistance of structural panel assemblies representing automotive hoods is described in this thesis. Fabricated panel assemblies incorporating typical components of real automotive ... -
Numerical Schemes for 1-D Two-Phase Flows
(University of Waterloo, 2017-05-15)Modeling of two-phase flows with strong thermal and mechanical non-equilibrium ef- fects is important in engineering applications, such as the nuclear industry. The Advection Upstream Splitting Methods (AUSM-family schemes) ... -
A Numerical Side Impact Model to Investigate Thoracic Injury in Lateral Impact Scenarios
(University of Waterloo, 2009-04-27)Although there have been tremendous improvements in crash safety there has been an increasing trend in side impact fatalities, rising from 30% to 37% of total fatalities from 1975 to 2004 (NHTSA, 2004). Between 1979 and ... -
Numerical Simulation of Blast Interaction with the Human Body: Primary Blast Brain Injury Prediction
(University of Waterloo, 2014-02-20)In Operations Enduring Freedom and Iraqi Freedom, explosions accounted for 81% of all injuries; this is a higher casualty percentage than in any previous wars. Blast wave overpressure has recently been associated with ... -
Numerical Simulation of Hydrocarbon Fuel Dissolution and Biodegradation in Groundwater
(University of Waterloo, 2000)The behaviour of hydrocarbon fuels in contaminated groundwater systems is studied using a multicomponent reactive transport model. The simulated processes include residual NAPL dissolution, aerobic and anaerobic ...