Abstract
Spanwise electro-magnetic forcing is used to study turbulence control and drag reduction in a numerical channel flow with a constant mass flow rate and low Reynolds number. The originality of this study comes from the computation of the force field from the geometry of the magnet and the electrode. It is shown that the tilt of the wall-normal component of the vorticity in the spanwise direction characterise the drag reduction caused by alternated spanwise forcing.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Thibault J-P., Rossi L., 2003, Electromagnetic flow control: Characteristic numbers and flow regimes of a wall-normal actuator, J. Phys. D: Appl. Phys. 36, 2559–2568.
Weier T., Fey U., Gerbeth G., Mutschke G., Avilov V., 2000, Boundary layer control by means of electromagnetic forces, ERCOFTAC Bull. 44, 36–40.
Nosenchuck D.M., 1996, Boundary layer control using the Lorentz force, in Proceedings of ASME Fluids Engineering Meeting, San Diego.
Berger T.W., Kim J., Lee C., Lim J., 2000, Turbulent boundary layer control utilizing the Lorentz force, Phys. Fluids 12(3), 631–649.
Du Y., Symeonidis V., Karniadakis G.E., 2002, Drag reduction in wall-bounded turbulence via a transverse travelling wave, J. Fluid Mech., 457, 1–34.
Akoun and Yonnet, 1984, 3D analytical calculation of the forces exerted between two cuboidal magnets, IEEE Transactions on Magnetics 20(5), September.
Kim J., Moin P. and Moser R., 1987, Turbulence statistics in fully developed channel flow at low Reynolds number, J. Fluid Mech. 177, 133–166.
Orlandi P., 2000, Fluid Flow Phenomena, A Numerical Toolkit, Kluwer Academic Publishers, Dordrecht, pp. 3–51 and 188–230.
Choi K.S., 2002, Near-wall structure of turbulent boundary layer with spanwise-wall oscillation, Phys. Fluids 14(7), 2530–2542.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer
About this paper
Cite this paper
Montesino, S., Thibault, JP., Tardu, S. (2008). Direct Numerical Simulation of Alternated Spanwise Lorentz Forcing. In: Morrison, J.F., Birch, D.M., Lavoie, P. (eds) IUTAM Symposium on Flow Control and MEMS. IUTAM Bookseries, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6858-4_30
Download citation
DOI: https://doi.org/10.1007/978-1-4020-6858-4_30
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-6857-7
Online ISBN: 978-1-4020-6858-4
eBook Packages: EngineeringEngineering (R0)