STABILITY OF DEVELOPING PIPE FLOW SUBJECTED TO NON-AXISYMMETRIC DISTURBANCES

The linear stability of the developing flow of an incompressible fluid in the entrance region of a circular tube is investigated. The case of non-axisymmetric small disturbances is considered in the analysis. The main-flow velocity distribution used in the stability calculations is that from the solution of the linearized momentum equation. The eigenvalue problem consisting of the disturbance equations and the boundary conditions is solved by a direct numerical integration scheme along with an iteration procedure. The flow is found to be unstable to nonaxisymmetric disturbances with an azimuthal wavenumber of one. Neutral-stability curves and critical Reynolds numbers at various axial locations are presented.

  • Corporate Authors:

    Interscience Publishers

    605 Third Avenue
    New York, NY  USA  10016
  • Authors:
    • Huang, L M
    • Chen, T S
  • Publication Date: 1974-3-18

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Filing Info

  • Accession Number: 00057616
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 5 1974 12:00AM