Geometry-induced pulse instability in microdesigned catalysts: the effect of boundary curvature.
We explore the effect of boundary curvature on the instability of reactive pulses in the catalytic oxidation of on microdesigned Pt catalysts. Using ring-shaped domains of various radii, we find that the pulses disappear (decollate from the inert boundary) at a turning point bifurcation, and we trace this boundary in both physical and geometrical parameter space. These computations corroborate experimental observations of pulse decollation.
Qiao
L
L
Department of Chemical Engineering, Princeton University, Princeton, NJ 08544, USA.
Kevrekidis
I G
IG
Punckt
C
C
Rotermund
H H
HH