Abstract
The turbulence in the bulk free region of a confined jet is investigated using a simple video-based particle image velocimetry technique. The latter, which relies on the interlacing properties of video filming and simple particle tracking concepts, is suitable for less dense seeding levels and lower flow velocities. The results obtained for the turbulence intensity variation in the jet agree with known data from literature. Spatially resolved integral length scales are calculated, and a relation for Eulerian-type length scales is proposed.
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Adrian, R. J. 1986: Multi-point optical measurements of simultaneous vectors in unsteady flow a review. Int. J. Heat and Fluid Flow. 7, 127 -143
Adrian, R. J. 1991: Particle-image techniques for experimental fluid mechanics. Ann. Rev. Fluid Mech. 23, 261–304
Barchilon, M.; Cutet, R. 1964: Some details of the structure of an axisymmetric confined jet with backflow. J. Basic Eng. 86, 777–787
Brown, J. S.; Khoo, B. C.; Sonin, A. A. 1990: Rate correlation for condensation of pure vapor on turbulent, subcooled liquid. Int. J. Heat Mass Transfer. 33, 2001 - 2018
Brumley, B. H.; Jirka, G. H. 1987: Near surface turbulence in a grid stirred tank. J. Fluid Mech. 183, 235–263
Hanoun, I. A.; Fernando, H. J. S.; List, E. J. 1988: Turbulence structure near a sharp density interface. J. Fluid Mech. 189, 189–209
Hinze, J. O. 1975: Turbulence. New York: McGraw-Hill
Hopfinger, E. J.; Toly, J. A. 1976: Spatially decaying turbulence and its relation to mixing across density interface. J. Fluid Mech. 78, 155–175
Khoo, B. C.; Sonin, A. A. 1991: Scalar rate correlation at a turbulent liquid free surface: A two-regime correlation for the high Schmidt numbers. Int. J. Heat Mass Transfer, in press
Sonin, A. A.; Shimko, M. A.; Chun, J. H. 1986: Vapor condensation onto a turbulent liquid. The steady condensation rate as a function of liquid-side turbulence. Int. J. Heat Mass Transfer. 29, 1319–1332
Thompson, S. M.; Turner, J. S. 1975: Mixing across an interface due to turbulence generated by an oscillating grid. J. Fluid Mech. 67, 349–368
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Khoo, B.C., Chew, T.C., Heng, P.S. et al. Turbulence characterisation of a confined jet using PIV. Experiments in Fluids 13, 350–356 (1992). https://doi.org/10.1007/BF00209510
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DOI: https://doi.org/10.1007/BF00209510