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

Author

Listed:
  • Mohanta, Lokanath
  • Cheung, Fan-Bill
  • Bajorek, Stephen M.

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.

Suggested Citation

  • Mohanta, Lokanath & Cheung, Fan-Bill & Bajorek, Stephen M., 2016. "Stability of coaxial jets confined in a tube with heat and mass transfer," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 443(C), pages 333-346.
    • Handle: RePEc:eee:phsmap:v:443:y:2016:i:c:p:333-346
    DOI: 10.1016/j.physa.2015.09.088
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    References listed on IDEAS

    as
    1. Asthana, Rishi & Agrawal, G.S., 2007. "Viscous potential flow analysis of Kelvin–Helmholtz instability with mass transfer and vaporization," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 382(2), pages 389-404.
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