Stability of the base flow to axisymmetric and plane-polar disturbances in an electrically driven flow between infinitely-long, concentric cylinders

J. Liu, G. Talmage, J. S. Walker

Research output: Contribution to journalArticlepeer-review

Abstract

The method of normal modes is used to examine the stability of an azimuthal base flow to both axisymmetric and plane-polar disturbances for an electrically conducting fluid confined between stationary, concentric, infinitely-long cylinders. An electric potential difference exists between the two cylinder walls and drives a radial electric current. Without a magnetic field, this flow remains stationary. However, if an axial magnetic field is applied, then the interaction between the radial electric current and the magnetic field gives rise to an azimuthal electromagnetic body force which drives an azimuthal velocity. Infinitesimal axisymmetric disturbances lead to an instability in the base flow. Infinitesimal plane-polar disturbances do not appear to destabilize the base flow until shear-flow transition to turbulence.

Original languageEnglish (US)
Pages (from-to)31-42
Number of pages12
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume123
Issue number1
DOIs
StatePublished - Mar 2001

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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