Turbulence Characterization in a Gully with Reverse Flow
Publication: Journal of Hydraulic Engineering
Volume 139, Issue 7
Abstract
This work presents an experimental investigation on turbulent flow characteristics in a typical gully with reverse flow. Four different flow rates (the inlet Reynolds number ranged between and ) were characterized in a laboratory facility using an acoustic Doppler velocimeter. A complete signal analysis was carried out to identify and remove the influence of errors in acoustic Doppler measurements on the computation of the mean velocity, turbulent kinetic energy, and Reynolds stresses. The flow showed a similar pattern between the different analyzed experimental conditions in terms of mean velocity and turbulent kinetic energy. A macroanticlockwise spanwise axis vortex was identified based on the mean velocity field in the region encompassed between the upstream wall and the inlet centerline. Maximum mean velocity magnitudes were approximately 25% of the inlet velocity and characterized the outer flow of the vortex. Higher turbulent kinetic energies were observed at the inlet centerline region with values approximately 5% of the inlet velocity square. The Reynolds stresses exhibited some anisotropy, which was revealed by both the shear stresses values and by the differences in the normal stresses. Normal stresses were higher than shear stresses, with maximum values at the inlet centerline region (about 3%, 5% and 2% of the inlet velocity square in the streamwise, spanwise and vertical direction, respectively).
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Acknowledgments
This research was funded by project PTDC/AAC-AMB/101197/2008, funded by the Portuguese Foundation for Science and Technology (FCT) and by the Operational Programme Thematic Factors of Competitiveness (COMPETE), shared by the European Regional Development Fund (ERDF). Financial support was also provided by EADIC II—Erasmus Mundus Action 2 Lot 13A, EU Mobility Programme 2010-2401/001-001-EMA2. The experiments were performed at the Laboratório de Hidráulica, Recursos Hídricos e Ambiente of the Universidade de Coimbra in Portugal. The acoustic Doppler velocimeter was provided by Laboratório Nacional de Engenharia Civil of Lisboa, Portugal. The writers are thankful to Mr. Joaquim da Silva and Ms. Joana Pião for their valuable assistance during the experiments.
References
Barkdoll, B. D., Hagen, B. L., and Odgaard, A. J. (1998). “Experimental comparison of dividing open-channel with duct flow in t-junction.” J. Hydraul. Eng., 124(1), 92–95.
Carvalho, R. F., Leandro, J., Martins, R., Abreu, J., and de Lima, J. L. M. P. (2011). “2dv numerical modelling of different flows occurring in gullies.” 12th Int. Conf. on Urban Drainage, IWA/IAHR, Porto Alegre, Brazil.
Chanson, H., Trevethan, M., and Koch, C. (2007). “Discussion of ‘Turbulence measurements with acoustic Doppler velocimeters’ by Carlos M. García, Mariano I. Cantero, Yarko Niño, and Marcelo H. García.” J. Hydraul. Eng., 133(11), 1283–1286.
Dordević, S., Chen, A., Evans, B., Galambos, I., Leandro, J., and Savić, D. A. (2009). “1D, 2D, 3D modelling of urban flooding.” Water Sanitary Technol. Belgrade, (4), 71–83.
Doroudian, B., Bagherimiyab, F., and Lemmin, U. (2010). “Improving the accuracy of four-receiver acoustic Doppler velocimeter (ADV) measurements in turbulent boundary layer flows.” Limnol. Oceanogr. Methods, 8, 575–591.
Dufresne, M., Vazquez, J., Terfous, A., Ghenaim, A., and Poulet, J.-B. (2009). “Experimental investigation and cfd modelling of flow, sedimentation, and solids separation in a combined sewer detention tank.” Comput. Fluids, 38(5), 1042–1049.
García, C. M., Cantero, M., Niño, Y., and García, M. H. (2005). “Turbulence measurements with acoustic Doppler velocimeters.” J. Hydraul. Eng., 131(12), 1062–1073.
García, C. M., Jackson, P., and García, M. H. (2006). “Confidence intervals in the determination of turbulence parameter.” Exp. Fluids, 40(4), 514–522.
Goring, D., and Nikora, V. (2002). “Despiking acoustic Doppler velocimeter data.” J. Hydraul. Eng., 128(1), 117–126.
Lemmin, U., and Lhermitte, R. (1999). “Discussion of ‘ADV measurements of turbulence: can we improve their interpretation?’ by Vladimir Nikora and Derek Goring.” J. Hydraul. Eng., 125(9), 987–988.
Liu, M., Rajaratnam, N., and Zhu, D. Z. (2002). “Evaluation of ADV measurements in bubbly two-phase flows.” Proc., Specialty Conf. 2002, Estes Park, CO.
Lohrmann, A., Cabrera, R., Gelfenbaum, G., and Haines, J. (1995). “Direct measurements of reynolds stress with an acoustic Doppler velocimeter.” Proc., IEEE 5th Working Conf. on Current Measurements, Buffalo, NY.
Nikora, V., and Goring, D. (1998). “ADV measurements of turbulence: Can we improve their interpretation?” J. Hydraul. Eng., 124(6), 630–634.
Nortek. (2012). “Principles of operation: 2. Acoustic Doppler velocimeters.” 〈http://www.nortekusa.com/usa/knowledge-center/table-of-contents/velocimeters〉.
Politis, D., and White, H. (2004). “Automatic block-length selection for the dependant bootstrap.” Econometric Rev., 23(1), 53–70.
Precht, E., Janssen, F., and Huettel, M. (2006). “Near-bottom performance of the acoustic Doppler velocimeter (ADV)—A comparative study.” Aquat. Ecol., 40(4), 481–492.
Robinson, K. M., Cook, K. R., and Hanson, G. J. (2000). “Velocity field measurements at an overfall.” Trans. ASAE, 43(3), 665–670.
Romagnoli, M., García, C. M., and Lopardo, R. A. (2011). “Discussion of ‘Energy dissipation and turbulence production in weak hydraulic jumps’ by Emmanuel Mignot and Rodrigo Cienfuegos.” J. Hydraul. Eng., 137(8), 857–860.
Romagnoli, M., García, C. M., and Lopardo, R. A. (2012). “Signal post-processing technique and uncertainty analysis of ADV’s turbulence measurements on free hydraulic jumps.” J. Hydraul. Eng., 138(4), 353–357.
Tennekes, H., and Lumley, J. L. (1972). A first course in turbulence, MIT, Cambridge, MA.
Voulgaris, G., and Trowbridge, J. (1998). “Evaluation of the acoustic Doppler velocimeter (ADV) for turbulence measurements.” J. Atmos. Ocean Technol., 15(1), 272–288.
Wahl, T. L. (2000). “Analizing ADV data using WinADV.” Proc., Conf. on Water Resources Engineering and Water Resources Planning and Management, Minneapolis, MN.
Wahl, T. L. (2003). “Discussion of ‘Despiking acoustic Doppler velocimeter data’ by Derek Goring and Vladimir Nikora.” J. Hydraul. Eng., 129(6), 484–487.
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© 2013 American Society of Civil Engineers.
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Received: Jun 30, 2012
Accepted: Jan 22, 2013
Published online: Jan 24, 2013
Published in print: Jul 1, 2013
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