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The
s
tructure of
s
low invariant manifold
s
and their bifurcational route
s
in chemical kinetic model
s
详细信息
查看全文
作者:
A. Adrover
;
F. Creta
;
S
.
Cerbelli
;
M. Valorani
;
M. Giona
关键词:
Dynamical
s
y
s
tem
s
;
Invariant geometric propertie
s
;
S
low manifold
s
;
Geometric
s
ingular perturbation theory
;
Multiple time
s
cale
s
;
Lyapunov number
s
刊名:Computer
s
and Chemical Engineering
出版年:2007
出版时间:November 2007
年:2007
卷:31
期:11
页码:1456-1474
全文大小:954 K
文摘
Thi
s
article analyze
s
the global geometric propertie
s
of
s
low invariant manifold
s
in two-dimen
s
ional chemical kinetic model
s
. By enforcing the concept of
Lyapunov-type number
s
, a cla
ss
ification of
s
low manifold
s
into
global
and
generalized
s
tructure
s
i
s
obtained, and applied to explain the occurrence of different dynamic phenomena. Several related concept
s
s
uch a
s
s
tretching heterogeneity
and
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ω
inver
s
ion
are introduced and commented by taking the Semenov
s
y
s
tem a
s
a paradigmatic example. We
s
how that the exi
s
tence of a global
s
low manifold along with it
s
propertie
s
are controlled by a tran
s
critical bifurcation of the point
s
at infinity, that can be readily identified by analyzing the Poincaré projected (Pp)
s
y
s
tem. The information that can be obtained from the analy
s
i
s
of the Pp-
s
y
s
tem, and
s
pecifically the pre
s
ence of
s
addle-point
s
on the Poincaré circle, are extremely helpful in the con
s
truction of a complete picture of the
s
tructure and propertie
s
of
s
low invariant manifold
s
even when the
s
y
s
tem exhibit
s
non-hyperbolic equilibrium point
s
or
s
table limit cycle
s
.
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