Modeling the coupling of reaction kinetics and hydrodynamics in a collapsing cavity

Sudib K. Mishra, P. A. Deymier, Krishna Muralidharan, G. Frantziskonis, Sreekanth Pannala, Srdjan Simunovic

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

We introduce a model of cavitation based on the multiphase Lattice Boltzmann method (LBM) that allows for coupling between the hydrodynamics of a collapsing cavity and supported solute chemical species. We demonstrate that this model can also be coupled to deterministic or stochastic chemical reactions. In a two-species model of chemical reactions (with a major and a minor species), the major difference observed between the deterministic and stochastic reactions takes the form of random fluctuations in concentration of the minor species. We demonstrate that advection associated with the hydrodynamics of a collapsing cavity leads to highly inhomogeneous concentration of solutes. In turn these inhomogeneities in concentration may lead to significant increase in concentration-dependent reaction rates and can result in a local enhancement in the production of minor species.

Original languageEnglish (US)
Pages (from-to)258-265
Number of pages8
JournalUltrasonics Sonochemistry
Volume17
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • Cavitation
  • Lattice Boltzmann Model
  • Multiphase
  • Reaction
  • Stochastic

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Chemistry
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics
  • Organic Chemistry
  • Inorganic Chemistry

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