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The Oregonator is a theoretical model for a type of autocatalytic reaction. The Oregonator is the simplest realistic model of the chemical dynamics of the oscillatory
Belousov–Zhabotinsky reaction A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting in the establishment of a nonlinear chemical oscillator. The only common element in ...
. It was created by Richard Field and Richard M. Noyes at the
University of Oregon The University of Oregon (UO, U of O or Oregon) is a Public university, public research university in Eugene, Oregon, United States. Founded in 1876, the university is organized into nine colleges and schools and offers 420 undergraduate and gra ...
. It is a portmanteau of
Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...
and
oscillator Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...
. Earlier, the
Brusselator The Brusselator is a theoretical model for a type of autocatalytic reaction. The Brusselator model was proposed by Ilya Prigogine and his collaborators at the Université Libre de Bruxelles. It is a portmanteau of Brussels and oscillator. ...
model was proposed by
Ilya Prigogine Viscount Ilya Romanovich Prigogine (; ; 28 May 2003) was a Belgian physical chemist of Russian-Jewish origin, noted for his work on dissipative structures, complex systems, and irreversibility. Prigogine's work most notably earned him the 19 ...
and his collaborators at the Free University of Brussels as a portmanteau of
Brussels Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...
and
oscillator Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...
. The Oregonator is a reduced model of the FKN mechanism (developed by Richard Field,
Endre Kőrös Endre Kőrös (September 18, 1927 – February 18, 2002) was a Hungarian chemist mostly known in the field of nonlinear chemical dynamics for developing the FKN mechanism, a description of the Belousov–Zhabotinsky reaction involving 11 react ...
, and Richard M. Noyes) which still involved 11 reactions and 12 species (21 intermediate species and 18 elementary steps). The Oregonator is characterized by the reactions : \begin \text \quad & A+Y \longrightarrow X+P \\ pt\text \quad & X+Y \longrightarrow 2P \\ pt\text \quad & A+X \longrightarrow 2X+2Z \\ pt\text \quad & 2X \longrightarrow A+P \\ pt\text \quad & B+Z \longrightarrow \frac 1 2 f Y \\ pt& \frac= k_I - k_ + k_ - 2k_ 2 \\ pt& \frac= -k_I - k_ + \fracf k_V \\ pt& \frac= 2k_ - k_V \end


See also

* Lotka–Volterra equations


Notes


References

{{reflist Non-equilibrium thermodynamics Oscillators Ordinary differential equations