Browsing by Author "Wheaton, Spencer"
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- ItemOpen AccessComputational physics resources - topic 1 - basic Monte Carlo(2013) Wheaton, SpencerA collection of resources (simulations and worksheets) focusing on basic Monte Carlo techniques. These materials are suited for guided-inquiry instruction at the senior undergraduate or honours level.
- ItemOpen AccessComputational physics resources - topic 2 - root-finding, interpolation & extrapolation(2014) Wheaton, SpencerA collection of Computational Physics Java simulations (developed using EJS) and guided inquiry worksheets aimed at the senior undergraduate or honours level. Ideal for guided inquiry at the senior undergraduate or honours level.
- ItemOpen AccessComputational physics resources - topic 4 - Monte Carlo integration(2014) Wheaton, SpencerA collection of resources (simulations and worksheets) focusing on Monte Carlo Integration techniques. These materials are suited for guided-inquiry instruction at the senior undergraduate or honours level.
- ItemOpen AccessA GPGPU implementation of the discrete element method applied to modeling the dynamic particulate environment inside a tumbling mill(2013) Hromnik, Marius; Govender, Indresan; Wheaton, SpencerTumbling mills have been an integral part of the comminution circuit for more than a century. With the advent of better computing, discrete element modeling (DEM) has taken on the challenge to model the dynamic particulate environment inside these devices in the search for understanding and hence improving the process of the size reduction of ore. This process represents a large percentage of the energy consumption of a mine. In this work, a discrete element modeling tool was built on a GPU-based platform to perform simulations on a single commodity hardware PC. With a view to elucidating the governing mechanisms inside such devices, the extreme capabilities of the GPU are utilised to provide performance and accurate simulation. The simulation environment offers control that can never be achieved in an experimental setup. Notwithstanding, when agreement with physical experiment is achieved, confidence can be gained in the computational results. In this work the foundations and framework for a large scale GPU based discrete element modeling tool have been built with an emphasis on strict physics requirements, rather than on performance or appearance. In this regard we demonstrate the validity of the GPU implementation of a Hertz-Mindlin-based contact model.
- ItemOpen AccessIntroductory physics - tools and skills(2014-06-26) Wheaton, SpencerA set of Java simulations addressing tools and skills required in introductory physics.
- ItemOpen AccessIntroductory Physics - Tools and Skills(2014-11-20) Wheaton, SpencerA set of simulations allowing students to acquire basic physics skills.
- ItemOpen AccessIntroductory Physics - Vibrations and Waves(2014-11-20) Wheaton, SpencerA set of simulations illustrating the physics of vibrations and waves.
- ItemOpen AccessStrangeness excitation functions and transition from baryonic to mesonic freeze-out(2009) Cleymans, Jean; Oeschler, Helmut; Redlich, Krzysztof; Wheaton, SpencerThe sharp peak in the K+/π+ ratio in relativistic heavy-ion collisions is discussed in the framework of the Statistical Model. In this model a rapid change is expected as the hadronic gas undergoes a transition from a baryon-dominated to a meson-dominated gas. The maximum in the Λ/π ratio is well reproduced by the Statistical Model, but the change in the K+/π+ ratio is somewhat less pronounced than the one observed by the NA49 collaboration. The calculated smooth increase of the K−/π− ratio and the shape of the Ξ−/π+ and Ω−/π+ ratios exhibiting maxima at different incident energies is consistent with the presently available experimental data. We conclude that the measured particle ratios with 20 − 30% deviations agree with a hadronic freeze-out scenario. These deviations seem to occur just in the transition from baryon-dominated to meson-dominated freeze-out.
- ItemOpen AccessThermal physics and statistical mechanics guided inquiry resources(2013) Wheaton, SpencerSeveral Easy Java Simulation (EJS) applets have been designed and supplemented with guided inquiry worksheets to illustrate some of the fundamental ideas of Thermal Physics and Statistical Mechanics. These materials are ideally suited for use in guided inquiry tutorial sessions.