Non-equilibrium phenomena in complex systems - a microscopic approach
4РП — Обучение и мобилност на изследователи
- Период
- 1996-01-01 → 1996-12-31
- Финансиране от ЕС
- —
- Участници
- 2
- Схема
- RGI
Линиите свързват координатора с партньорите. За проекти отпреди 2014 г. CORDIS не винаги дава точни координати. Тези точки са на ниво град или държава.
Накратко на български
Сложните системи извън равновесие се анализират чрез компютърни модели, като например поведението на течност при температурни разлики и турбулентност. Това помага да се разберат процеси и флуктуации, които са трудни за изследване чрез експерименти или стандартни теории.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Цел на проекта
Structures emerging in systems out of equilibrium are in general of greater complexity and variety than their equilibrium counterparts. This wealth of be- haviour is both the reason for current interest in the field and the source of dif- ficulties in the analysis of non-equilibrium phenomena. We propose to study a class of model systems with simplified microdynamics (lattice gas automata) in order to investigate the meso and macroscopic behaviour of spatially extended systems under non-equilibrium constraints. Lattice gas automata exhibit features that make them well-suited to model these complex systems under both equi- librium and non-equilibrium conditions: They possess a large number of degrees of freedom, they are non-linear and, furthermore, they exhibit spontaneous fluc- tuations. Their discrete nature facilitates the computational implementation of their dynamics, making it possible to investigate large systems, and yielding ac- cess to quantities that are hard to obtain in experiments or from other theoretical approaches. As a prototypical system, we shall analyze theoretically and numeri- cally a thermal lattice gas automaton to investigate the appearance of long-range correlations in a fluid subject to a temperature gradient, away from critical points and hydrodynamic instabilities. We further investigate the properties of the dis- tribution of temperature fluctuations in such a fluid, when both a temperature gradient and turbulence are present. The results of these simulations will be com- pared to experiments and also to stochastic models, which include the effects of fluctuations in a phenomenological manner. This proposal is intended as a continuation of current research being carried out by the applicant under a EC 'Human Capital and Mobility' fellowship within the network Nonlinear dynamics and statistical physics of spatially extended sys- tems.
Оригинален текст от CORDIS (на английски).
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Данни: CORDIS, © Европейски съюз