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Stability of developing pipe flow subjected to non-axisymmetric disturbances

Published online by Cambridge University Press:  29 March 2006

L. M. Huang
Affiliation:
Department of Mechanical and Aerospace Engineering, University of Missouri-Rolla, Rolla, Missouri 65401
T. S. Chen
Affiliation:
Department of Mechanical and Aerospace Engineering, University of Missouri-Rolla, Rolla, Missouri 65401

Abstract

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. An orthonormalization method is employed to remove the ‘parasitic errors’ inherent in the numerical integration of the coupled disturbance equations. The flow is found to be unstable to non-axisymmetric disturbances with an azimuthal wavenumber of one. Neutral-stability curves and critical Reynolds numbers at various axial locations are presented. A comparison of these results is made with those for axisymmetric disturbances reported by Huang & Chen. It is found that the first instability of the flow is due to non-axisymmetric disturbances and occurs in the entrance region of the pipe with a minimum critical Reynolds number of 19 780.

Type
Research Article
Copyright
© 1974 Cambridge University Press

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References

Batchelor, G. K. & Gill, A. E. 1962 Analysis of the stability of axisymmetric jets. J. Fluid Mech. 14, 529.Google Scholar
Burridqe, D. M. 1970 The stability of Poiseuille pipe flow to non-axisymmetric disturbances. Geophys. Fluid Dyn. Inst., Florida State University, Tech. Rep. no. 34.Google Scholar
Chen, B. H. P. 1969 Finite amplitude disturbances in the stability of pipe Poiseuille flow. Ph.D. thesis, University of Rochester.
Corcos, G. M. & Sellars, J. R. 1959 On the stability of fully developed flow in a pipe. J. Fluid Meclt. 5, 97.Google Scholar
Davey, A. & Drazin, P. G. 1969 The stability of Poiseuille flow in a pipe. J. Fluid Mech. 36, 209.Google Scholar
Fox, J.A., Lessen, M. & Bhat, W.V. 1968 Experimental investigation of Hagen-Poiseuille flow. Phys. Fluids, 11, 1.Google Scholar
Garg, V. K. & Rouleau, W. T. 1972 Linear spatial stability of pipe Poiseuille flow. J. Pluid Mech. 54, 113.Google Scholar
Gill, A. E. 1965 On the behaviour of small disturbances to Poiseuille flow in a Oircular pipe. J. Fluid Mech. 21, 145.Google Scholar
Graebel, W. P. 1970 The stability of pipe flow. Part 1. Asymptotic analysis for small wave-numbers. J. Fluid Mech, 43, 279.Google Scholar
Huang, L. M. 1973 Stability of the developing laminar flow in a circular tube. Ph.D. thesis, University of Missouri-Rolla.
Huang, L. M. & Chen, T. S. 1974 Stability of the developing laminar pipe flow. Phys. Fluids, in press.Google Scholar
Lessen, M., Sadler, S. G. & Liu, T. Y. 1968 Stability of pipe Poiseuille flow. Phys. Fluids, 11, 1404.Google Scholar
Muller, D. E. 1956 A method for solving algebraic equations using an automatic computer. Math. Tables & Aids to Comp. 10, 208.Google Scholar
Salwen, H. & Grosch, C. E. 1972 The stability of Poiseuille flow in a pipe of circular cross-section. J. Fluid Mech. 54, 93.Google Scholar
Sparrow, E. M., Lin, S. H. & Lundgren, T. S. 1964 Flow development in the hydro-dynamic entrance region of tubes and ducts. Phys. Fluids, 7, 338.Google Scholar
Squire, H. B. 1933 On the stability for three-dimensional disturbances of viscous fluid flow between parallel walls. Proc. Roy. Soc. A 142, 621.Google Scholar
Tatsumi, T. 1952a Stability of the laminar inlet-flow prior t o the formation of Poiseuille regime. I. J. Phys. Soc. Japan 7, 489.Google Scholar
Tatsumi, T. 1952b Stability of the laminar inlet-flow prior to the formation of Poiseuille regime. 11. J. Phys. Soc. Japan, 7, 495.Google Scholar
Wazzan, A. R., Okaikijila, T. T. & Smith, A. M. O. 1967 Stability of laminar boundary layer at separation. Phys. Fluids, 10, 2540.Google Scholar