Abstract
The effect of blowing through a localized slot on the wall turbulence dynamics and heat transfer process is analyzed by direct numerical simulations in a fully developed turbulent channel flow. The severity parameter is mild and there is no flow separation induced by the blowing. The shear stress transport and temperature energy budget is discussed in detail. The wall shear and flux decreases immediately downstream the slot in a similar manner but the Reynolds analogy does not hold over the slot. The physical process is governed by the production and pressure redistribution over the slot in a complex manner. The turbulent transport and especially the advection play an essential role in the heat transfer mechanism.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Andersen, P.-S., Kays, W.-M. and Moffat, R.-J., Experimental results for the transpired turbulent boundary layer in an adverse pressure gradient, J. Fluid Mech., 69 (1975), 353–375.
Chakraborty, P., Balachandar, S. and Adrian, R.-J., Kinematics of local vortex identification criteria, J. of Visualization, 10-2, (2007), 137–140.
Jeong, J. and Hussain, F., On the identification of a vortex, J. Fluid Mech., 285 (1995), 69–94.
Kawamura, H., Ohsaka, K., Abe, H. and Yamamoto, K., DNS of turbulent heat transfer in channel flow with low to medium-high Prandtl number fluid, Int. J. Heat and Fluid Flow, 19 (1998), 482–491.
Lyons, S., Hanratty, T. and McLaughin, J., Direct numerical simulation of passive heat transfer in a turbulent channel flow, Int. J. Heat and Mass Transfer, 34-4/5 (1991), 1149–1161.
Mansour, N., Kim, J. and Moin, P., Reynolds shear stress and dissipation rate budgets in a turbulent channel flow, J. Fluid Mech., 122 (1988), 15–44.
Park, J. and Choi, H., Effect s of uniform blowing or suction from a spanwise slot on a turbulent boundary layer flow, Phys. Fluids., 11-10 (1999), 3095–3105.
Sano, M. and Hirayama, N., Turbulent boundary layers with injection and suction through a slit, Bulletin of JSME, 28 (1985), 807–814.
Sokolov, M. and Antonia, R.-A., Response of a turbulent boundary layer to intensive suction through a porous strip, Ninth Symp. on Turbulent Shear Flows (Kyoto), (1993), 5-3-1 to 5-3-6.
Tardu, S., Near wall turbulence control by time space periodical blowing and suction. Effect of local time periodical blowing, Exp. Thermal and Fluid Science, 16/1-2, (1998), 41–54
Author information
Authors and Affiliations
Corresponding author
Additional information
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Sedat Tardu: He received his B. Sc and M. Sc. (Mechanical Engineering) conjointly from Technical
Olivier Doche: He received his B.Sc and M. Sc (Mechanics) from the University of Grenoble in respectively 2002 and 2003 and his PhD from the same University in 2006. After postdoctoral research at CEA (French Nuclear Research Center) wherein he worked on nanofluids, he joined recently AREVA as a senior research engineer. His main research interests are computational fluid dynamics, direct numerical simulations active and passive control of turbulent drag.
Rights and permissions
About this article
Cite this article
Tardu, S., Doche, O. Turbulent passive scalar transport under localized blowing. J Vis 11, 285–298 (2008). https://doi.org/10.1007/BF03182197
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF03182197