Abstract
Direct numerical simulations of interface-resolved sediment transport in horizontal open-channel flow are currently being performed on the XC-4000. The channel bottom boundary is roughened with a fixed layer of spheres and about 9000 particles are allowed to move within the computational domain. The density ratio of the solid and fluid phase is 1.7 and the bulk Reynolds number of the flow is 2880. In the present configuration, the particles tend to accumulate near the bed because of gravity, but due to the turbulent motions, a cycle of resuspension and deposition is produced. This leads to a particle concentration profile which decreases with the distance from the bed. The preliminary results show that the presence of particles strongly modifies the mean fluid velocity and turbulent fluctuation profiles. The dispersed phase lags the carrier phase on average across the whole channel height. Both observations confirm previous experimental evidence. The different observations suggest that particle inertia, finite-size and finite-Reynolds effects together with gravity play an important role in this flow configuration. Several potential mechanisms of turbulence-particle interaction are discussed.
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References
D. Kaftori, G. Hetsroni, and S. Banerjee. Particle behavior in the turbulent boundary layer. II. Velocity and distribution profiles. Phys. Fluids, 7(5):1107–1121, 1995.
A. Tanière, B. Oesterlé, and J.C. Monnier. On the behaviour of solid particles in a horizontal boundary layer with turbulence and saltation effects. Exp. Fluids, 23(6):463–471, 1997.
K.T. Kiger and C. Pan. Suspension and turbulence modification effects of solid particulates on a horizontal turbulent channel flow. J. Turbulence, 3:019, 2002.
M. Righetti and G.P. Romano. Particle-fluid interactions in a plane near-wall turbulent flow. J. Fluid Mech., 505:93–121, 2004.
M. Muste, K. Yu, I. Fujita, and R. Ettema. Two-phase flow insights into open-channel flows with suspended particles of different densities. Environ. Fluid Mech., 9:161–186, 2009.
Y. Pan and S. Banerjee. Numerical investigation of the effects of large particles on wall-turbulence. Physics of Fluids, 9(12):3786–3807, 1997.
C. S. Peskin. Flow patterns around heart valves: A digital computer method for solving the equation of motion. PhD thesis, Albert Einstein College of Medicine, 1972.
C.S. Peskin. The immersed boundary method. Acta Numerica, 11:479–517, 2002.
M. Uhlmann. An immersed boundary method with direct forcing for the simulation of particulate flows. J. Comput. Phys., 209(2):448–476, 2005.
R. Verzicco and P. Orlandi. A finite-difference scheme for three-dimensional incompressible flows in cylindrical coordinates. J. Comput. Phys., 123:402–414, 1996.
R. Glowinski, T.W. Pan, T.I. Hesla, and D.D. Joseph. A distributed Lagrange multiplier fictitious domain method for particulate flows. Int. J. Multiphase flow, 25(5):755–794, Aug 1999.
M. Uhlmann. New results on the simulation of particulate flows. Technical Report 1038, CIEMAT, Madrid, Spain, 2003. ISSN 1135–9420.
M. Uhlmann. An improved fluid-solid coupling method for DNS of particulate flow on a fixed mesh. In M. Sommerfeld, editor, Proc. 11th Workshop Two-Phase Flow Predictions. 2005.
M. Uhlmann. Direct numerical simulation of sediment transport in a horizontal channel. Technical Report 1088, CIEMAT, Madrid, Spain, 2006. ISSN 1135-9420.
M. Uhlmann. Experience with DNS of particulate flow using a variant of the immersed boundary method. In P. Wesseling, E. Oñate, and J. Périaux, editors, Proc. ECCOMAS CFD. Egmond and Zee, The Netherlands, 2006.
M. Uhlmann. Interface-resolved direct numerical simulation of vertical particulate channel flow in the turbulent regime. Phys. Fluids, 20(5):053305, 2008.
I. Nezu and H. Nakagawa. Turbulence in Open-Channel Flows. IAHR/AIRH Monograph Series, Balkema Publishers, Rotterdam, 1993.
M. Breuer and W. Rodi. Large eddy simulation of complex turbulent flows of practical interest. In E.H. Hirschel, editor, Flow simulation with high performance computers II, volume 52 of Notes on Numerical Fluid Mechanics, pages 258–274. Vieweg, Braunschweig, 1996.
C. Hinterberger. Dreidimensionale und tiefengemittelte Large-Eddy-Simulation von Flachwasserströmungen. Ph.D. thesis, University of Karlsruhe, Institute for Hydromechanics, 2004.
M.I. Yudine. Physical consideration on heavy-particle diffusion. Adv. Geophys., 6:185–191, 1959.
M. GarcĂa. Sedimentation engineering: processes, measurements, modeling, and practice. American Society of Civil Engineers (ASCE), Reston, Va., 2008. ASCE Manual of Practice 110.
R. Clift, J.R. Grace, and M.E. Weber. Bubbles drops and particles. Academic Press, New York, 1978.
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Chan-Braun, C., GarcĂa-Villalba, M., Uhlmann, M. (2011). Direct Numerical Simulation of Sediment Transport in Turbulent Open Channel Flow. In: Nagel, W., Kröner, D., Resch, M. (eds) High Performance Computing in Science and Engineering '10. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15748-6_23
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DOI: https://doi.org/10.1007/978-3-642-15748-6_23
Publisher Name: Springer, Berlin, Heidelberg
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