While some physics educators have included computing in courses or have developed specialized courses for over 50 years, computational physics education has only slowly made inroads into the broader physics education ...
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While some physics educators have included computing in courses or have developed specialized courses for over 50 years, computational physics education has only slowly made inroads into the broader physics education community. Even now, when computation is arguably more important than ever in physics research and applications, it's rare that a physics department offers more than a single course in the topic to its undergraduate students. There have been several times over the years when interest in a more global approach to computational physics education has surged, only to subside without attaining the goal that computing finally take an essential role in the education of undergraduate physicists. The author reviews some of the history of computational physics education, briefly discusses his experience with the program at Illinois State University, and suggests some direction for the future.
Granular materials have very special properties as well in the solid state (packing) as in the fluidized state (e.g., under vibrations). To describe and predict their behaviour, computer simulation methods have been d...
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Granular materials have very special properties as well in the solid state (packing) as in the fluidized state (e.g., under vibrations). To describe and predict their behaviour, computer simulation methods have been developed on different scales. Collision models take into account individual particle contacts and although once over 10(9) particles have been simulated for several microseconds in real time, these methods typically cannot treat more than 10(4) particles. On intermediate scales stochastic models and lattice models have been introduced in which details of the collisions are lost but particle numbers are high. (C) 2000 Elsevier Science B.V. All rights reserved.
In this paper it is shown how classical Newtonian mechanics and special relativistic mechanics can be reformulated using only arithmetic. All the usual conservation laws are established in exactly the same form in whi...
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In this paper it is shown how classical Newtonian mechanics and special relativistic mechanics can be reformulated using only arithmetic. All the usual conservation laws are established in exactly the same form in which they appear in continuous mechanics. New, completely arithmetic models of physical phenomena emerge. Analysis of dynamical behavior requires the use of a modern digital computer.
Studies of ultra-fast laser-matter interaction are important for many applications. Such interaction triggers extreme physical processes which are localized in the range from similar to 10 nanometers to micron spatial...
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Studies of ultra-fast laser-matter interaction are important for many applications. Such interaction triggers extreme physical processes which are localized in the range from similar to 10 nanometers to micron spatial scales and developing within picosecond-nanosecond time range. Thus the experimental observations are difficult and methods of applied mathematics are necessary to understand these processes. Here we describe our simulation approaches and present solutions for a laser problem significant for applications. Namely, the processes of melting, a liquid jet formation, and its rupture are considered. Motion with the jet is caused by a short similar to 0.1-1 ps pulse illuminating a small spot on a surface of a thin similar to 10 - 100 nm film deposited onto substrate. We find the 5-fold symmetry structures in the frozen jet and appearance of very sharp tip of the jet.
Tato práce se zabývá simulačními prostředky pro vývoj algoritmů pro řízení autonomních automobilů. V zásadě lze rozdělit na dvě části, na rešeršní, teoretickou...
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Tato práce se zabývá simulačními prostředky pro vývoj algoritmů pro řízení autonomních automobilů. V zásadě lze rozdělit na dvě části, na rešeršní, teoretickou, a praktickou, vývojovou. V té prvně zmíněné je uveden přehled dostupných nástrojů pro simulaci autonomních vozidel, jedná se jak o nástroje open-sourcové tak placené. Dále se v teoretické části popisuje princip a nástroje, resp. enginy pro řešení dynamických rovnic na počítači. Důraz je kladen na fyzikální engine Box2D který je dle zadání této práce využit ve druhé části teze pro vývoj vlastního prostředí simulujícího autonomní automobil.
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