TY - JOUR
T1 - Chemically Driven Hydrodynamic Instabilities
AU - Almarcha, Christophe
AU - Trevelyan, Philip
AU - Grosfils, Patrick
AU - De Wit, Anne
PY - 2010/1/29
Y1 - 2010/1/29
N2 - In the gravity field, density changes triggered by a kinetic scheme as simple as A+ B→ C can induce or affect buoyancy-driven instabilities at a horizontal interface between two solutions containing initially the scalars A and B. On the basis of a general reaction-diffusion-convection model, we analyze to what extent the reaction can destabilize otherwise buoyantly stable density stratifications. We furthermore show that, even if the underlying nonreactive system is buoyantly unstable, the reaction breaks the symmetry of the developing patterns. This is demonstrated both numerically and experimentally on the specific example of a simple acid-base neutralization reaction.
AB - In the gravity field, density changes triggered by a kinetic scheme as simple as A+ B→ C can induce or affect buoyancy-driven instabilities at a horizontal interface between two solutions containing initially the scalars A and B. On the basis of a general reaction-diffusion-convection model, we analyze to what extent the reaction can destabilize otherwise buoyantly stable density stratifications. We furthermore show that, even if the underlying nonreactive system is buoyantly unstable, the reaction breaks the symmetry of the developing patterns. This is demonstrated both numerically and experimentally on the specific example of a simple acid-base neutralization reaction.
UR - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.104.044501
U2 - 10.1103/PhysRevLett.104.044501
DO - 10.1103/PhysRevLett.104.044501
M3 - Article
SN - 0031-9007
VL - 104
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 044501
ER -