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Oscillation-generating mechanisms in stochastic and deterministic models of a catalytic reactionстатья
Дата последнего поиска статьи во внешних источниках: 23 декабря 2016 г.
- Авторы: Kurkina E.S., Semendyaeva N.L.
- Журнал: Computational Mathematics and Modeling
- Том: 14
- Номер: 3
- Год издания: 2003
- Издательство: Consultants Bureau
- Местоположение издательства: United States
- Первая страница: 319
- Последняя страница: 333
- DOI: 10.1023/A:1024499227068
- Аннотация: The article examines consistent mathematical micro- and macro-level models of CO oxidation on platinum-group metals. New mechanisms responsible for the excitation of oscillations are studied in detail by simulation. Micro-level oscillations may arise in parameter-space regions where the corresponding macro model has a limiting cycle, a bistability, or a unique stable steady-state solution. In the latter case, necessary conditions for the excitation of oscillations include fluctuations in the concentration of adsorbed particles, which are characteristic of micro models of small-volume systems, and a special arrangement of the macro-model trajectories on the phase plane producing sensitivity to small perturbations or excitability of the medium.
- Добавил в систему: Семендяева Наталья Леонидовна