THREE-DIMENSIONAL SIMULATION OF HIGH REYNOLDS NUMBER TURBULENT FLOWS IN A RECTANGULAR OPEN CHANNEL

Published 31 August 2020 •  vol 141  • 


Authors:

 

Boudiaf Hcine, Department of Hydraulics – Institute of Civil Engineering, Hydraulics and Architecture, Batna University
Pr Fourar Ali, Department of Hydraulics – Institute of Civil Engineering, Hydraulics and Architecture, Batna University
Abdessemed Fouzi, Department of Hydraulics – Institute of Civil Engineering, Hydraulics and Architecture, Batna University

Abstract:

 

The present study describes the three-dimensional simulation of turbulent flow with high Reynolds number in a rectangular free surface channel with the presence of a disturbing element (obstacles). The numerical study is based on measuring the flow velocity in two directions, axial and vertical in four planes near the obstacle. For the modeling of the free surface a multiphase flow model VOF (Volume Of Fluid) is used. In our present case, namely the study of turbulence, three numerical models; k-ε standard, k-w and the RSM (Reynolds Stress Model) are compared. The checking results could highlight the advantage of the Reynolds stress model. This model better captures the phenomena in an intense vortex flow in the presence of obstacles.

Keywords:

 

Turbulent Flow, High Reynolds, Numerical Models, Multiphase Flow, Vortex

References:

 

[1] Fluent Inc. Gambit Modeling Guide (2001).
[2] Fluent Inc. Fluent Tutorial Guide vol. 1, 2, 3, 16. (2003).
[3] Fluent Inc. Fluent User’s Guide vol. 1, 2, 3, 4,10, 6, 22, 24. (2003).
[4] Aris, R., “Vectors, Tensors and the Basic Equations of Fluid Mechanics”, Englewood Cliffs, N.J.: Prentice-Hall, Inc. Reprinted, Dover, New York, 1989.
[5] B. E. Launder, G. J. Reece, and W. Rodi, “Progress in the Development of a Reynolds-Stress Turbulence Closure”, J. Fluid Mech., 68(3):537-566, April 1975.
[6] D. C. Wilcox. Turbulence Modeling for CFD. DCW Industries, Inc., La Canada, California, 1998.
[7] Delphine Lacanette, Stéphane Vincent, Eric Arquis, “A Numerical Experiment On The Interaction Between a Film and a Turbulent Jet”, C. R. Mécanique 333 (2005), pp. 343–349.
[8] Drew D.A, “Mathematical modeling of two-phase flow”, Ann. Rev. Fluid. Meech. vol. 15, pp. 261-291, 1983.
[9] Franch, R. H, “Open-Channel Hydraulics”, New York: Mcgraw-Hill, 1986. 705 P.
[10] Hérouin E, “Modélisation Des Ecoulements Complexes A Surface Libre En Milieu Naturel”, Rapport Cemargef Lyon - 95 p, 1991.
[11] Keller, R. J. and Rodi, W., “Prediction of Flow Characteristics in Main Channel/Flood Plain Flows”, Journal of Hydraulic Research, 1988, Vol 26, n°4, P. 425-441.
[12] Launder B and Spalding D. “Lectures in Mathematical Models of Turbulence”, Academic Press, London, England, (1972).
[13] Launder B, Spalding D, “The Numerical Computation of Turbulent Flows”, Computational Methods in Applied Mechanical Engineering, Vol 3, pp 269-289, 1974.
[14] Ouillon, S. and Dartus, D., “Three-Dimensional Computation of Flow around Groyne”, Journal of Hydraulic Engineering, 1997, Vol 123, n. 11, p.962-970.
[15] Patrick Chassaing, “Turbulence En Mécanique Des Fluides; Analyse Du Phénomène En Vue De Sa Modélisation A L'usage De L'ingénieur”, Editions Cépaduès, coll. Polytech de l'I.N.P De Toulouse, 2000.
[16] Sajjad Haider, “Contribution a La Modélisation D’une Inondation En Zone Urbanisée, Approche Bidimensionnelle Par Les Equations De SAINT VENANT”, Thèse pour obtenir le titre de Docteur de L’institut National Des Science Appliquées De LYON Spécialité Mécanique Annexe, (2001) N° d’ordre 01 ISAL 0019.

Citations:

 

APA:
Hcine, B., Ali, P. F., & Abdessemed Fouzi (2020). Three-Dimensional Simulation of High Reynolds Number Turbulent Flows in a Rectangular Open Channel. International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, 141, 11-24. doi: 10.33832/ijast.2020.141.01.

MLA:
Hcine, Boudiaf, et al. “Three-Dimensional Simulation of High Reynolds Number Turbulent Flows in a Rectangular Open Channel.” International Journal of Advanced Science and Technology, ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 141, 2020, pp. 11-24. IJAST, http://article.nadiapub.com/IJAST/Vol141/2.html.

IEEE:
[1] B. Hcine, P. F. Ali, and A. Fouzi, "Three-Dimensional Simulation of High Reynolds Number Turbulent Flows in a Rectangular Open Channel." International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 141, pp. 11-24, August 2020.