Abstract
Normal and streamwise components of the velocity fields of turbulent flow in a channel at low Reynolds numbers have been measured with laser-Doppler techniques. The experiments duplicate the conditions used in current direct numerical simulations of channel flow, and good, but not exact, agreement is found for single-point moments through fourth order. In order to eliminate LDV velocity bias and to measure velocity spectra, the mean time interval between LDV signals was adjusted to be much smaller than the smallest turbulence time scale. Spectra of the streamwise and normal components of velocity at locations spanning the channel are presented.
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References
Adrian, R. J. 1975: A bipolar, two-component laser-Doppler velocimeter. J. Phys. E4, 72–75
Adrian, R. J. 1983: Laser velocimetry. In: Fluid mechanics measurements, (ed. Goldstein, R. J.). pp. 155–244. Washington/DC: Hemisphere
Adrian, R. J.; Yao, C. S. 1987: Power spectra of fluid velocities measured by laser Doppler velocimetry. Exp. Fluids 5, 17–28
Buckles, J.; Hanratty, T. J.; Adrian, R. J. 1984: Turbulent flow over large-amplitude wavy surfaces. J. Fluid Mech. 140, 27–44
Goodwin, J. W.; Ottewill, R. H.; Pelton, R.; Vianello, G.; Yates, D. E. 1978: Control of particle size in the formation of polymer latices. Br. Polym. J. 10, 173–180
Hanratty, T. J.; Chorn, L. G.; Hatziavramidis, D. T. 1977: Turbulent fluctuations in the viscous wall region for newtonian and drag reducing fluids. Phys. Fluids 20, S112-S119
Hatziavramidis, D. T. 1978: Interpretation of the flow in the viscous wall region as a driven flow. Ph.D. thesis, University of Illinois, Urbana
Juarg, M. S.; Krieger, I. M. 1976: Emulsifier-free emulsion polymerization with ionic comonomer. J. Polym. Sci. 14, 2089–2107
Kim, J.; Moin, P.; Moser, R. 1987: Turbulence statistics in fully developed channel flow at low reynolds number. J. Fluid Mech. 177, 133–166
Lyons, S. L. 1989: A direct numerical simulation of fully developed turbulent channel flow with passive heat transfer. Ph.D. thesis, University of Illinois, Urbana
Niederschulte, M. A. 1989: Turbulent flow through a rectangular channel. Ph.D. thesis, University of Illinois, Urbana
Shaw, D. A.; Hanratty, T. J. 1977: Influence of schmidt number on the fluctuations of turbulent mass transfer to a wall. AIChE J. 23, 160–169
Sirkar, K. K.; Hanratty, T. J. 1970: Relation of turbulent mass transfer to a wall at high schmidt numbers to the velocity field. J. Fluid Mech. 44, 589–603
Vassiliadou, E. 1985: Turbulent mass transfer to a wall at large schmidt numbers. Ph.D. thesis, University of Illinois, Urbana
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Niederschulte, M.A., Adrian, R.J. & Hanratty, T.J. Measurements of turbulent flow in a channel at low Reynolds numbers. Experiments in Fluids 9, 222–230 (1990). https://doi.org/10.1007/BF00190423
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DOI: https://doi.org/10.1007/BF00190423