The hydrodynamic stability of a fluid-particle flow: Instabilities in gas-fluidized beds

Xue Liu, Maureen A. Howley, Jayati Johri, Benjamin Glasser

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The Rutgers University, US, introduces a fluid-particle flow model, to teach chemical engineering undergraduates about hydrodynamic instabilities in gas-fluidized beds. The fluid-particle flow problem, presented for analysis, has been simplified as a single-phase compressible fluid acted upon by a force representing the fluid-particle drag force. It also leads to analytical solutions, to be obtained from this simplified system. It is observed that the fluid-particle flow model is similar to the Navier Stokes equation with an extra term. The model demonstrates that the problem can be implemented in Fluid Dynamics or Transport Phenomena course in the chemical or mechanical engineering curriculum, or Applied Math course in fluid dynamics. The model also demonstrates that the investigation of hydrodynamic stability involves determining when the state of flow become more unstable to small perturbations and the way instabilities evolve in space and time.

Original languageEnglish (US)
Pages (from-to)179-184
Number of pages6
JournalChemical Engineering Education
Volume42
Issue number4
StatePublished - Sep 1 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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