Pattern of Reaction Diffusion Fronts in Laminar Flows
نویسندگان
چکیده
منابع مشابه
Pattern of reaction diffusion fronts in laminar flows.
Autocatalytic reaction between reacted and unreacted species may propagate as solitary waves, namely, at a constant front velocity and with a stationary concentration profile, resulting from a balance between molecular diffusion and chemical reaction. The effect of advective flow on the autocatalytic reaction between iodate and arsenous acid in cylindrical tubes and Hele-Shaw cells is analyzed ...
متن کاملTime-delayed reaction-diffusion fronts.
A time-delayed second-order approximation for the front speed in reaction-dispersion systems was obtained by Fort and Méndez [Phys. Rev. Lett. 82, 867 (1999)]. Here we show that taking proper care of the effect of the time delay on the reactive process yields a different evolution equation and, therefore, an alternate equation for the front speed. We apply the new equation to the Neolithic tran...
متن کاملThe effects of laminar mixing on reaction fronts and patterns
A wide variety of dynamical processes are influenced by some sort of reaction. In its most general sense, a “reaction” is when some species A changes into some other species B during a process, possibly via an interaction with other species. The most obvious example is a chemical reaction, when two or more reactants interact to form a third product, e.g., A + B C or A + B 2A. Combustion is ...
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Supplementary data rsta.2012.0179.DC1.html http://rsta.royalsocietypublishing.org/content/suppl/2012/11/23/ "Presentation at Turbulent Mixing and Beyond conference" References 79.full.html#ref-list-1 http://rsta.royalsocietypublishing.org/content/371/1982/201201 This article cites 62 articles Subject collections (52 articles) mathematical physics collections Articles on similar topics can be...
متن کاملField theory of propagating reaction-diffusion fronts.
The problem of velocity selection of reaction-diffusion fronts has been widely investigated. While the mean-field limit results are well known theoretically, there is a lack of analytic progress in those cases in which fluctuations are to be taken into account. Here, we construct an analytic theory connecting the first principles of the reaction-diffusion process to an effective equation of mot...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2003
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.90.128302