Creeping Flow Through an Axisymmetric Sudden Contraction or Expansion-Reference-Cited by-同舟云学术

Creeping Flow Through an Axisymmetric Sudden Contraction or Expansion

Published:2001-10-18 Issue:1 Volume:124 Page:273-278
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Sisavath Sourith¹,Jing Xudong¹,Pain Chris C.¹,Zimmerman Robert W.¹

Affiliation:

1. Department of Earth Science and Engineering, Imperial College of Science, Technology and Medicine, London SW7 2BP, United Kingdom

Abstract

Creeping flow through a sudden contraction/expansion in an axisymmetric pipe is studied. Sampson’s solution for flow through a circular orifice in an infinite wall is used to derive an approximation for the excess pressure drop due to a sudden contraction/expansion in a pipe with a finite expansion ratio. The accuracy of this approximation obtained is verified by comparing its results to finite-element simulations and other previous numerical studies. The result can also be extended to a thin annular obstacle in a circular pipe. The “equivalent length” corresponding to the excess pressure drop is found to be barely half the radius of the smaller tube.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/124/1/273/5902208/273_1.pdf

Reference23 articles.

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2. Stielmeier, M., Tropea, C., Weiser, N., and Nitsche, W., 1989, “Experimental Investigation of the Flow through Axisymmetric Expansions,” ASME J. Fluids Eng., 111, pp. 464–471.

3. Astarita, G., and Greco, G., 1968, “Excess Pressure Drop in Laminar Flow through Sudden Contraction,” Ind. Eng. Chem. Fundam., 7, pp. 27–31.

4. Sylvester, N. D., and Rosen, S. L., 1970, “Laminar Flow in the Entrance Region of a Cylindrical Tube,” AIChE J., 16, pp. 964–972.

5. Edwards, M. F., Jadallah, M. S. M., and Smith, R., 1985, “Head Losses in Pipe Fittings at Low Reynolds Numbers,” Chem. Eng. Res. Des., 63, pp. 43–50.

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