Aspects of Inlet Boundary Prescription for a Turbulent Flow Field
Publication: Journal of Hydraulic Engineering
Volume 127, Issue 8
Abstract
In the literature on turbulent flow various combinations of velocity, turbulence kinetic energy, and eddy viscosity models have been proposed for the inlet boundary to a flow field. There appears to be no rational criterion for specifying inlet boundary conditions. The present study proposes a criterion to select the inlet boundary conditions by treating the inlet boundary as a part of the flow field. Using this criterion, any prescribed variation of velocity, turbulence kinetic energy k, and rate of dissipation of kinetic energy ε, must satisfy the governing flow field equations at the inlet boundary. Analysis of previously used profiles of velocity, kinetic energy, and dissipation of kinetic energy in the literature indicates that most of these do not satisfy the flow field equations. To substantiate the importance of inlet boundary conditions, several reported numerical simulations using k-ε turbulence models are reconsidered to determine if there is any linkage between the residual errors at the inlet boundary and the errors in the flow field simulation. Based on such an analysis, it is both logical and practical to hypothesize the inlet boundary as a part of flow field.
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References
1.
Alfrink, B. J., and van Rijn, L. C. (1983). “Two-equation turbulence model for flow in trenches.”J. Prof. Issues in Engrg., ASCE, 109(7), 941–958.
2.
Aroussi, A., and Ferris, S. A. ( 1987). “Air flow over buildings: A computer simulation of L.D.A. measurements.” Proc., 2nd Int. Conf. on Laser Anemometry—Adv. and Applications, Springer-Verlag, Berlin, 175–188.
3.
Castro, I. P., and Cheun, B. S. ( 1982). “The measurement of Reynolds stresses with a pulsed-wire anemometer.” J. Fluid Mech., Cambridge, U.K., 118, 41–58.
4.
Castro, I. P., and Robins, A. G. ( 1977). “The flow around a surface-mounted cube in uniform and turbulent streams.” J. Fluid Mech., Cambridge, U.K., 79(2), 307–335.
5.
Celik, I., and Demuren, A. O. (1985). “Discussion of ‘Two-Equation Turbulence Model for Flow in Trenches’”J. Hydr. Engrg., ASCE, 111(4), 735–736.
6.
Counihan, J., Hunt, J. C. R., and Jackson, P. S. ( 1974). “Wakes behind two-dimensional surface obstacles in turbulent boundary layers.” J. Fluid Mech., Cambridge, U.K., 64(3), 529–563.
7.
Cuhadaroglu, B., Yavuz, T., and Uysal, M. ( 1991). “Prediction of two-dimensional turbulent flows around surface mounted bluff bodies.” Proc., 7th Int. Conf. on Laminar and Turbulent Flows, Vol. VII, Pineridge Press, Swansea, U.K., 359–369.
8.
Haggkvist, K., Svensson, U., and Taesler, R. ( 1989). “Numerical simulations of pressure fields around buildings.” Build. and Envir., 24(1), 65–72.
9.
Haque, A., and Berlamont, J. (1998). “Modeling density and turbulence in stratified tidal medium.”J. Hydr. Engrg., ASCE, 124(2), 135–145.
10.
Jones, W. P., and Launder, B. E. ( 1972). “The prediction of laminarization with a two-equation model of turbulence.” Int. J. Heat Mass Transfer, 15, 301–314.
11.
Murakami, S., and Mochida, A. ( 1989). “Three-dimensional numerical simulation of turbulent flow around buildings using the k-ε turbulence model.” Build. and Envir., 24(1), 51–64.
12.
Richards, P. J., and Hoxey, R. P. ( 1993). “Appropriate boundary conditions for computational wind engineering models using the k-ε turbulence model.” J. Wind Engrg. Industrial Aerodynamics, 46–47, 145–153.
13.
Rodi, W. ( 1980). “Turbulence models and their application in hydraulics—A state of the art review.” International Association for Hydraulic Research, Delft, The Netherlands.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 127 • Issue 8 • August 2001
Pages: 694 - 700
History
Received: Sep 8, 1998
Published online: Aug 1, 2001
Published in print: Aug 2001
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