Stability of coaxial jets confined in a tube with heat and mass transfer

Lokanath Mohanta, Fan-bill B. Cheung, Stephen M. Bajorek

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

A linear temporal stability of coaxial confined jets in a vertical tube involving heat and mass transfer at the interface is presented in this paper. A potential flow analysis that includes the effect of viscosity at the interface is performed in analyzing the stability of the system. Film boiling in a vertical tube gives rise to the flow configuration explored in this work. The effects of various non-dimensional parameters on the growth rate and the neutral curve are discussed. The heat transfer at the interface has been characterized by introducing a heat flux ratio between the conduction heat flux and the evaporation heat flux. Viscous forces and the heat and mass transfer at the interface are found to stabilize the flow both in the capillary instability region and Kelvin-Helmholtz instability region. Increasing heat and mass transfer at the interface stabilizes the flow to small as well as very large wave numbers.

Original languageEnglish (US)
Pages (from-to)333-346
Number of pages14
JournalPhysica A: Statistical Mechanics and its Applications
Volume443
DOIs
StatePublished - Feb 1 2016

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Condensed Matter Physics

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