Shallow Turbulent Flows by Video Imaging Method
Publication: Journal of Engineering Mechanics
Volume 129, Issue 10
Abstract
Shallow turbulent flows were produced in a tank of small thickness to study the friction effects on large-scale turbulent motion of small depth. The tank was constructed of two parallel walls. The space between the parallel walls (4.4, 1.57, and 0.59 cm) was small compared with the height (107 cm) and the width (212 cm) of the tank, and was varied during the experiments for different friction effects. Turbulent flows were produced by the injection of water in the form of starting jets into the tank filled with water. The large-scale turbulent flow in the small space between the walls of the tank is confined to essentially two-dimensional motion, and the motion is retarded by the force of friction. Dye was injected with the source fluid as the tracer for the highly unsteady and quasitwo-dimensional turbulent motion. From the initiation of the turbulent motion at the source to the final interaction of the jets with the tank bottom, the entire sequence of events was recorded by a pair of video cameras. The depth-averaged concentration of the dye was analyzed using the recorded video images.
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References
Altai, W., Zhang, J.-B., and Chu, V. H.(1999). “Shallow turbulent flow simulation using two-length-scale model.” J. Eng. Mech., 127(5), 780–788.
Babarutsi, S., and Chu, V. H.(1998). “Modeling transverse mixing layer in shallow open-channel flows.” J. Hydraul. Eng., 124(7), 718–727.
Balachandar, R., Tachie, M. F., and Chu, V. H.(1999). “Concentration profiles in shallow turbulent wakes.” J. Fluids Eng., 121, 34–43.
Booij, R. (1989). “Depth-averaged modeling.” Proc., 23rd IAHR Congress, Ottawa, Vol. A, 199–206.
Bouhairie, S., and Chu, V. H. (2000). “Entrapment process in recirculating flow by video-imaging method.” Proc., Engineering Mechanics 2000 Conf., Austin, Tex.
Chu, V. H. (1994). “Lagrangian scalings of jets and plumes with dominant eddies.” Research advances in fluid mechanics of turbulent jets and plumes, NATO ASI, E225, P. A. Davis and M. J. Valente-Neves, eds., Kluwer Academic, Dordrecht, 45–72.
Chu, V. H. (2002). “Turbulent transport processes across natural streams.” Environmental fluid mechanics—theories and applications, H. Shen, A. D. Cheng, K. H. Wang, M. H. Teng, and C. C. K. Liu, eds., Chap. 5, American Society Civil Engineers, New York, 127–167.
Chu, V. H., and Babarutsi, S. (1989). “Modelling of the turbulent mixing layers in shallow open channel flows.” Proc., 23rd Int. Association for Hydraulic Research (IAHR), Congress of IAHR, Vol. A, 191–198.
Fisher, H. B., et al. (1979). Mixing in inland and coastal waters, Academic Press, San Diego.
Nadaoka, K., and Yagi, H.(1998). “Shallow water turbulence modeling and horizontal large-eddy computation of river flow.” J. Hydraul. Eng., 124(5), 493–500.
Nassiri, M., Babarutsi, S., and Chu, V. H. (1997). “Two-dimensional large eddy simulation for shallow recirculating flow.” Proc., 27th Congress of IAHR, San Francisco, 817–822.
Zhang, J.-B. (1996). “Turbulence measurements in shallow shear flow using video imaging method.” PhD thesis, McGill Univ., Montreal.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 129 • Issue 10 • October 2003
Pages: 1164 - 1172
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jun 25, 2002
Accepted: Jan 3, 2003
Published online: Sep 15, 2003
Published in print: Oct 2003
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