Bistability in inhomogeneity-Effects of flow coherent structures on the fate of a bistable reaction

Wenbo Tang, Aditya Dhumuntarao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We present a numerical study on the mixing process between two stable states of a chemical reaction model. The two stable states of the reactions are found in practice not to coexist, and a single stable state of homogeneous scalar concentration is achieved over long time. With all other parameters fixed, we find the dependence of the final state on the rate of reaction. Interestingly, with the existence of coherent structures, at a range of intermediate rate of reaction, we find that the final state also depends on the initial locations of the scalar impurity. The exact dependence on initial condition is explored in detail. These results lead to the fundamental understanding on the variability of biogeochemical tracers in the environment induced by nonlinear fluid stirring.

Original languageEnglish (US)
Article number076601
JournalPhysics of Fluids
Volume27
Issue number7
DOIs
StatePublished - 2015

Fingerprint

Chemical reactions
inhomogeneity
Impurities
Fluids
scalars
stirring
tracers
chemical reactions
impurities
fluids

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Bistability in inhomogeneity-Effects of flow coherent structures on the fate of a bistable reaction. / Tang, Wenbo; Dhumuntarao, Aditya.

In: Physics of Fluids, Vol. 27, No. 7, 076601, 2015.

Research output: Contribution to journalArticle

@article{e914045d48f2449ca70ece12d1739afa,
title = "Bistability in inhomogeneity-Effects of flow coherent structures on the fate of a bistable reaction",
abstract = "We present a numerical study on the mixing process between two stable states of a chemical reaction model. The two stable states of the reactions are found in practice not to coexist, and a single stable state of homogeneous scalar concentration is achieved over long time. With all other parameters fixed, we find the dependence of the final state on the rate of reaction. Interestingly, with the existence of coherent structures, at a range of intermediate rate of reaction, we find that the final state also depends on the initial locations of the scalar impurity. The exact dependence on initial condition is explored in detail. These results lead to the fundamental understanding on the variability of biogeochemical tracers in the environment induced by nonlinear fluid stirring.",
author = "Wenbo Tang and Aditya Dhumuntarao",
year = "2015",
doi = "10.1063/1.4923250",
language = "English (US)",
volume = "27",
journal = "Physics of Fluids",
issn = "1070-6631",
publisher = "American Institute of Physics Publising LLC",
number = "7",

}

TY - JOUR

T1 - Bistability in inhomogeneity-Effects of flow coherent structures on the fate of a bistable reaction

AU - Tang, Wenbo

AU - Dhumuntarao, Aditya

PY - 2015

Y1 - 2015

N2 - We present a numerical study on the mixing process between two stable states of a chemical reaction model. The two stable states of the reactions are found in practice not to coexist, and a single stable state of homogeneous scalar concentration is achieved over long time. With all other parameters fixed, we find the dependence of the final state on the rate of reaction. Interestingly, with the existence of coherent structures, at a range of intermediate rate of reaction, we find that the final state also depends on the initial locations of the scalar impurity. The exact dependence on initial condition is explored in detail. These results lead to the fundamental understanding on the variability of biogeochemical tracers in the environment induced by nonlinear fluid stirring.

AB - We present a numerical study on the mixing process between two stable states of a chemical reaction model. The two stable states of the reactions are found in practice not to coexist, and a single stable state of homogeneous scalar concentration is achieved over long time. With all other parameters fixed, we find the dependence of the final state on the rate of reaction. Interestingly, with the existence of coherent structures, at a range of intermediate rate of reaction, we find that the final state also depends on the initial locations of the scalar impurity. The exact dependence on initial condition is explored in detail. These results lead to the fundamental understanding on the variability of biogeochemical tracers in the environment induced by nonlinear fluid stirring.

UR - http://www.scopus.com/inward/record.url?scp=84939126577&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84939126577&partnerID=8YFLogxK

U2 - 10.1063/1.4923250

DO - 10.1063/1.4923250

M3 - Article

AN - SCOPUS:84939126577

VL - 27

JO - Physics of Fluids

JF - Physics of Fluids

SN - 1070-6631

IS - 7

M1 - 076601

ER -