0
TECHNICAL BRIEFS

Experimental Study of Turbulent Asymmetric Flow in a Flat Duct Symmetric Sudden Expansion

[+] Author and Article Information
F. Aloui

Faculté des Sciences et des Techniques, Dpt. de Physique-LGP (UPRES-EA 1152) 2, rue de la Houssinière, BP. 92208-44322 Nantes Cédex 03, France

M. Souhar

LEMTA (CNRS, UMR 7563)-ENSEM-INPL-2, av. de la Fore⁁t de Haye, BP. 160 54504 Vandoeuvre lès Nancy Cédex, France

J. Fluids Eng 122(1), 174-177 (Oct 13, 1999) (4 pages) doi:10.1115/1.483245 History: Received October 13, 1997; Revised October 13, 1999
Copyright © 2000 by ASME
Your Session has timed out. Please sign back in to continue.

References

Enzo,  O. M., and Tin-Tan,  H. 1967, “Computational and Experimental Study of a Captive Annular Eddy,” J. Fluid Mech., 28, Part 1, pp. 43–64.
Ha-Minh, H., 1970, “Decollement provoque d’un écoulement turbulent incompressible,” Thèse de Doctorat és-Sciences, Toulouse.
Bijay, K. S., Paul, G. N., and Darryl, E. M., 1991, “Turbulent Flow Prediction in a Sudden Axisymmetric Expansion,” Turbulent Shear Flow 7, Seventh International Symposium, Stanford University, pp. 655–663.
Teyssandier,  R. G., and Wilson,  M. P. 1974, “An Analysis of Flow Through Sudden Enlargements in Pipes,” J. Fluid Mech., 64, Part 1, pp. 85–95.
Durst,  F., Melling,  A., and Whitelaw,  J. H. 1974, “Low Reynolds Number Flow Over a Plane Symmetrical Sudden Expansion,” J. Fluid Mech., 64, Part 1, pp. 111–128.
Restivo,  A., and Whitelaw,  J. H., 1978, “Turbulence Characteristics of the Flow Downstream of a Symmetric Plane Sudden Expansion,” J. Heat Transfer, 100, Sept., pp. 308–310.
Cherdron,  W., Durst,  F., and Whitelaw,  J. H., 1978, “Asymmetric Flows and Instabilities in Symmetric Ducts with Sudden Expansions,” J. Fluid Mech., 84, Part 1, pp. 13–31.
Fearn,  R. M., Mullin,  T., and Kliffe,  K. A. 1990, “Nonlinear Flow Phenomena in a Symmetric Sudden Expansion,” J. Fluid Mech., 211, pp. 595–608.
Gagnon,  Y., Giovannini,  A., and Hebrard,  P., 1993, “Numerical Simulation and Physical Analysis of High Reynolds Number Recirculating Flows Behind Sudden Expansions,” Phys. Fluids A, Fluid Dynamics, 5, No. 10, pp. 2377–2389.
Alleborn,  N., Nandakumar,  K., Raszillier,  H., and Durst,  F., 1997, “Further Contributions on the Two-Dimensional Flow in a Sudden Expansion,” J. Fluid Mech., 330, pp. 169–188.
Aloui, F., 1994, “Etude des écoulements monophasiques et diphasiques dans les élargissements brusques axisymétrique et bidimensionnel,” Thèse de Doctorat de l’INPL, Nancy.
Aloui,  F., and Souhar,  M., 1996, “Experimental Study of Two-Phase Bubbly Flow in a flat duct symmetric sudden expansion-Part 1 : Visualization, pressure and void fraction,” Int. J. Multiphase Flow, 22, No. 4, pp. 651–665.
Hinze, J. O., 1975, Turbulence, McGraw-Hill, New York.

Figures

Grahic Jump Location
Schematic diagram of experimental apparatus (dimensions in mm)
Grahic Jump Location
Three-dimensional view downstream pressure distribution under sudden expansion for U1=3.2 m/s (Re1=32,000;Re2=14208); uncertainty estimates: on p*: 7 percent, and Δξ=±0.01
Grahic Jump Location
The RMS pressure contours (ln Pa) downstream of the sudden expansion for U1=3.2 m/s,Δp=50 Pa, (Re1=32,000;Re2=14,208); uncertainty estimates: RMS of p: 6 percent, and Δy*=±0.01
Grahic Jump Location
Axial velocity profiles and the axial fluctuation rate before the sudden expansion for U1=3.2 m/s at ξ=−0.36; (Re1=32,000;Re2=14,208); uncertainty estimates: Ū: 2 percent, and on u/U: 12 percent
Grahic Jump Location
Axial velocity profiles downstream of the sudden expansion, for U1=3.2 m/s (Re1=32,000;Re2=14,208); uncertainty estimates; Ū/U1 4 percent, and Δy=±0.2 mm
Grahic Jump Location
(a) Separation boundaries between principal and recirculation flow. (b) General reorganization of flow downstream of the sudden expansion for U1=3.2 m/s, (Re1=32,000;Re2=14,208); uncertainty estimates on Fig. 6(a): 12 percent
Grahic Jump Location
RMS-u contours (in m/s) downstream of the sudden expansion (ΔU=0.05 m/s) for U1=3.2 m/s; (Re1=32,000;Re2=14,208); uncertainty estimates: 10 percent

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In