Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 1095-1114 of 1507
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Numerical Failure Pressure Prediction of Crack-in-Corrosion Defects in Natural Gas Transmission Pipelines
(University of Waterloo, 2010-08-25)The aim of this study was to use the finite element method to model crack, corrosion, and Crack-in-Corrosion defects in a pipeline. The pipe material under investigation for this study was API 5L X60, 508 mm diameter with ... -
A Numerical Investigation of Heat Transfer Coefficients for Indoor Window Insect Screens
(University of Waterloo, 2012-01-23)Due to rising energy prices as well as supply and ecological concerns, there is a strong interest in reducing the energy used in buildings. As such, it is desirable to model the operation of a building and predict its ... -
Numerical Investigation of Multi-compartment Fire Scenarios using Large Eddy Simulation (LES)
(University of Waterloo, 2016-08-16)The selected fire scenario corresponds to the Propagation d’un Incendie pour des Scenarios Multi-locaux Elementaires (PRISME) Integral Test 4, which is a multi-room configuration with a single pool fire burning Hydrogenated ... -
Numerical Investigation on Turbulent Non-premixed Methanol Flames Using Conditional Source-term Estimation
(University of Waterloo, 2015-12-18)Conditional Source-term Estimation (CSE) is a turbulent combustion model that uses conditional averages to close the chemical source term. Previous CSE studies have shown that the model is able to predict the flame ... -
Numerical modeling and experimental investigation of a prismatic battery subjected to water cooling
(Taylor and Francis, 2017-03-19)In this paper, a numerical model using ANSYS Fluent for a minichannel cold plate is developed for water-cooled LiFePO4 battery. The temperature and velocity distributions are investigated using experimental and computational ... -
Numerical Modeling for the Prediction of Primary Blast Injury to the Lung
(University of Waterloo, 2007-01-12)As explosive blasts continue to cause casualties in both civil and military environments, there is a need for increased understanding of the mechanisms of blast trauma at the organ level and a need for a more detailed ... -
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 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 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 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 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 Simulations of Small-scale and Full-scale Fire Experiments
(University of Waterloo, 2018-06-15)A fundamental part of fire safety engineering is dedicated to the application of numerical fire models. Accurate predictions of real-life fires are needed in scenarios related to fire growth, smoke propagation, occupant ... -
Numerical Study on Single Flowing Liquid and Supercritical CO2 Drop in Microchannel: Thin Film, Flow Fields, and Interfacial Profile
(MDPI, 2018-06-01)Taylor segments, as a common feature in two- or multi-phase microflows, are a strong flow pattern candidate for applications when enhanced heat or mass transfer is particularly considered. A thin film that separates these ...