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J. Phys. Soc. Jpn. 64 (1995) pp. 1557-1578  |Next Article|  |Table of Contents|
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Flow Induced by a Pair of Line Vortices Moving against a Circular Cylinder

Chien-Cheng Chang, Chin-Chou Chu, Cheng-Chien Liu, Ching-Cheng Chang and Sih-Tsan Lee

Institute of Applied Mechanics, College of Engineering,
National Taiwan University, Taipei 106, Taiwan, Republic of China

(Received September 19, 1994)

A combined numerical and experimental analysis has been carried out for investigating the behavior of a pair of line vortices, mutually propelled to approach a circular cylinder. The flow is assumed to be two-dimensional in numerical simulations, and which condition is examined carefully in laboratory experiments. The Reynolds number Re=κ/ν based on the initial circulation κ of the vortices and the kinematic viscosity ν of the fluid ranges from 100 to 1500. Flow behaviors are identified and classified into three patterns with six types of characteristic trajectories associated with the primary and secondary vortices. Of particular interest are the phenomena of rebound and reversal, exhibited respectively by the primary vortices moving against the cylinder under different flow conditions. Stable pairs of line vortices are generated in laboratory experiments; flow visualization shows excellent agreement with numerical results in the comparisons of several flow behaviors. ©1995 The Physical Society of Japan

KEYWORDS: line vortex, circular cylinder, viscous flow, separation, primary and secondary vortices, trajectories, rebound, reversal, computation, experiment
URL: http://jpsj.ipap.jp/link?JPSJ/64/1557/
DOI: 10.1143/JPSJ.64.1557


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References | Citing Article (1)

  1. F. S. Dee and O. P. Nicholas: Flight Measurement of Wing Tip Vortex Motion near the Ground (British Aeronautical Research Council, London, 1968) CP 1065.
  2. J. K. Harvey and F. J. Perry: A.I.A.A. J. 9 (1971) 1659.
  3. S. J. Barker and S. C. Crow: J. Fluid Mech. 82 (1977) 659[CrossRef].
  4. P. G. Saffman: J. Fluid Mech. 92 (1979) 497[CrossRef].
  5. A. J. Peace and N. Riley: J. Fluid Mech. 129 (1983) 409[CrossRef].
  6. P. G. Saffman: Phys. Fluids A 3 (1991) 984[AIP Scitation].
  7. P. Orlandi: Phys. Fluids A 2 (1990) 1429[AIP Scitation].
  8. H. Yamada, H. Yamabe, A. Itoh and H. Hayashi: Vortex Motion, ed. H. Hasimoto and T. Kambe (1988) p. 105.
  9. N. Riley and R. Vasantha: J. Fluid Mech. 205 (1989) 243[CrossRef].
  10. P. Orlandi: Phys. Fluids A 5 (1993) 2196[AIP Scitation].
  11. J. D. A. Walker: Proc. R. Soc. London Ser. A 359 (1978) 167.
  12. L. L. Van Dommelen and S. F. Shen: J. Comput. Phys. 38 (1980) 125.
  13. V. J. Peridier, F. T. Smith and J. D. A. Walker: J. Fluid Mech. 232 (1991) 99[CrossRef].
  14. V. J. Peridier, F. T. Smith and J. D. A. Walker: J. Fluid Mech. 232 (1991) 133[CrossRef].
  15. K. Shariff and A. Leonard: Rev. Fluid Mech. 24 (1992) 235.
  16. G. K. Batchelor: An Introduction to Fluid Dynamics (Cambridge Univ. Press., 1967).
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