Round Jet in Ambient Counterflowing Stream
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VIEW THE REPLYPublication: Journal of Hydraulic Engineering
Volume 123, Issue 10
Abstract
We investigate the penetration and spreading of a round jet into an ambient counterflow using the planar laser-induced fluorescence (LIF) technique. The LIF images enable us to obtain the instantaneous concentration field of the penetrating jet effluent. Large-scale wandering of jet penetration is observed and leads to significant temporal and spatial fluctuations in the location of the dividing interface between jet effluent and ambient fluid. The penetration distance and the lateral spreading width of the jet exhibit fluctuations with covering ranges as large as their corresponding time-averaged values. The degree of fluctuations in these penetration and spreading parameters increases with the jet-to-current velocity ratio, but essentially scales with the mean penetration distance. We also attempt to predict the mean penetration distance by considering the decay of centerline jet velocity under a hypothesis that the counterflow affects the jet via a simple compression of the axial coordinates of jet flow.
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References
1.
Abramovich, B. N. (1963). The theory of turbulent jets. MIT Press, Cambridge, Mass.
2.
Andreopoulos, J., and Rodi, W.(1984). “Experimental investigation of jets in a crossflow.”J. Fluid Mech., 138, 93–127.
3.
Antonia, R. A., and Bilger, R. W.(1974). “The prediction of the axisymmetric turbulent jet issuing into a co-flowing stream.”Aeronautical Quarterly, 25, 69–80.
4.
Davies, P. A., and Valente Neves, M. J. (1994). Recent advances in the fluid mechanics of turbulent jets and plumes. Kluwer Academic Publishers, Boston, Mass.
5.
Fisher, H. B., List, E. J., Koh, R. C. Y., Imberger, J., and Brooks, N. H. (1979). “Mixing in inland and coastal waters.” Academic Press, San Diego, Calif.
6.
Knudsen, M. (1988). “Buoyant horizontal jets in an ambient flow,” PhD thesis, University of Cantebury, New Zealand.
7.
Koenig, O., and Fielder, H. E. (1991). “The structure of round turbulent jets in counterflow: a flow visualization study.”Advances in turbulence 3, A. V. Johansson and P. H. Alfredsson, eds., Springer-Verlag, Berlin, Germany, 61–66.
8.
Lam, K. M. (1991). “Penetration of a submerged round jet into a counter-flowing current.”Envir. Hydr.; Proc., Int. Symp. on Envir. Hydr., J. H. W. Lee and Y. K. Cheung, eds., A. A. Balkema Publishers, Rotterdam, The Netherlands, 115–120.
9.
Lam, K. M., and Chan, H. C.(1995). “Investigation of turbulent jets issuing into a counter-flowing stream using digital image processing.”Experiments in Fluids, 18(3), 210–212.
10.
Lee, J. H. W., and Cheung, V.(1991). “Mixing of buoyant-dominated jets in a weak current.”Proc., Instn. Civ. Engrs, Part 2, 91, 113–129.
11.
McDannel, M. D., Peterson, P. R., and Samuelsen, G. S.(1982). “Species concentration and temperature measurements in a lean, premixed flow stabilized by a reverse jet.”Comb. Sci. and Technol., 28, 211–224.
12.
Michalke, A., and Hermann, G.(1982). “On the inviscid stability of a circular jet with external flow.”J. Fluid Mech., 114, 343–359.
13.
Pyratt, W. K. (1991). Digital image processing. Wiley-Interscience, New York, N.Y.
14.
Rajaratnam, M. (1976). Turbulent jets. Elsevier Scientific Publ. Co., Amsterdam, The Netherlands.
15.
Sekundov, A. N. (1969). “The propagation of a turbulent jet in an opposing stream.”Turbulent jets of air, plasma and real gas, G. N. Abramovich, ed., Consultants Bureau, New York, N.Y., 99–109.
16.
Wood, I. R.(1993). “Asymptotic solutions and behaviour of outfall flumes.”J. Hydr. Engrg., ASCE, 119(5), 555–580.
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Copyright © 1997 American Society of Civil Engineers.
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Published online: Oct 1, 1997
Published in print: Oct 1997
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