Numerical investigation of the wake flow control past a circular cylinder with electrohydrodynamic actuator. (English) Zbl 1408.76573
Summary: A numerical analysis is carried out to investigate the wake flow control behind a circular cylinder with corona discharge. The electrohydrodynamic flow is utilized to suppress the boundary layer separation and modify the vortical structures of the flow past a circular cylinder. Numerical simulations consist of the interaction between the electric and flow fields. In this article, the finite volume approach is employed to simulate the flow affected by EHD actuator. The effects of applied voltage, shape of the grounded electrode, location and radius of the discharge electrodes on the swirling flow patterns and drag reduction have been studied. The Reynolds numbers are considered from 4000 to 16,000. The results shown that, the modification in EHD actuator design can be used to enhance the flow control effects. The present achievements indicate that, EHD-induced flow can significantly reduce the wake flow behind a circular cylinder. Moreover, the study suggested that this actuator can be applied to practical separation suppression and drag reduction. Furthermore, the predicted numerical results are in excellent agreement with the experimental data.
MSC:
| 76W05 | Magnetohydrodynamics and electrohydrodynamics |
| 76D25 | Wakes and jets |
| 76M25 | Other numerical methods (fluid mechanics) (MSC2010) |
Software:
FLUENTReferences:
| [1] | Gad-El-Hak, M., Flow Control: Passive, Active, and Reactive Flow Management, (2000), Cambridge University Press · Zbl 0968.76001 |
| [2] | A. Bouchmal, Modeling of Dielectric-Barrier Discharge Actuator. Master of Science Thesis, Delft University of Technology, 2011. |
| [3] | Yabe, A.; Mori, Y.; Hijikata, K., EHD study of the corona wind between wire and plate electrodes, AIAA J., 16, 340-345, (1978) |
| [4] | Lai, F. C.; Mathew, J., Heat transfer enhancement by EHD-induced oscillatory flows, J. Heat Transfer, 128, 861-869, (2006) |
| [5] | Lakeh, R. B.; Molki, M., Targeted heat transfer augmentation in circular tubes using a corona jet, J. Electrost., 70, 31-42, (2012) |
| [6] | Deylami, H. M.; Amanifard, N.; Dolati, F.; Kouhikamali, R.; Mostajiri, K., Numerical investigation of electrohydrodynamic effects on the airflow through corrugated channels, Part C: J. Mech. Eng. Sci., 227, 2730-2741, (2013) |
| [7] | Artana, G.; Sosa, R.; Moreau, E.; Touchard, G., Control of the near-wake flow around a circular cylinder with electrohydrodynamic actuators, Exp. Fluids, 35, 580-588, (2003) |
| [8] | Mardkari, F.; Aghakhani, M.; Esmaeilzadeh, E., Experimental study of fluid flow around cylinder in the presence of EHD actuators, J. Appl. Sci., 12, 90-95, (2012) |
| [9] | Magnier, P.; Hong, D.; Leroy-Chesneau, A.; Pouvesle, L. M.; Hureau, J., A DC corona discharge on a flat plate to induce air movement, Exp. Fluids, 42, 815-825, (2007) |
| [10] | Chang, J. S.; Brocilo, D.; Urashima, K.; Dekowski, J.; Podlinski, J.; Mizeraczyk, J.; Touchard, G., On-set of EHD turbulence for cylinder in cross flow under corona discharges, J. Electrost., 64, 569-573, (2006) |
| [11] | Rickard, M.; Dunn-Rankin, D.; Weinberg, F.; Carleton, F., Characterization of ionic wind velocity, J. Electrost., 63, 711-716, (2005) |
| [12] | Tsubonea, H.; Ueno, J.; Komeili, B.; Minami, S.; Harvel, G. D.; Urashima, K.; Ching, C. Y.; Chang, J. S., Flow characteristics of wire-non-parallel plate electrohydrodynamic gas pumps, J. Electrost., 66, 115-121, (2008) |
| [13] | Zhao, L.; Adamiak, K., EHD flow in air produced by electric corona discharge in pin-plate configuration, J. Electrost., 63, 337-350, (2005) |
| [14] | Farnoosh, N.; Adamiak, K.; Castle, G., 3-D numerical analysis of EHD turbulent flow and mono-disperse charged particle transport and collection in a wire-plate ESP, J. Electrost., 63, 513-522, (2010) |
| [15] | Ahmedou, S. O.; Havet, M., Analysis of the EHD enhancement of heat transfer in a flat duct, IEEE Trans. Dielectr. Electr. Insul., 16, 489-494, (2009) |
| [16] | Chun, Y. N.; Chang, J.; Berezin, A.; Mizeraczyk, J., Numerical modeling of near corona wire electrohydrodynamic flow in a wire-plate electrostatic precipitator, IEEE Trans. Dielectr. Electr. Insul., 14, 119-124, (2007) |
| [17] | Fluent Inc. FLUENT 6.3 user’s guide, Lebanon NH, 2006. |
| [18] | Recommended international standard for dimensionless parameters used in electrohydrodynamics, IEEE Trans. Dielectr. Electr. Insul., 10, 3-6, (2003) |
| [19] | Ota, T.; Okamoto, Y.; Yshikawa, H ., A correction formula for wall effects on unsteady forces of two-dimensional bluff bodies, J. Fluids Eng., 116, 414-418, (1994) |
| [20] | Hyun, K. T.; Chun, C. H., The wake flow control behind a circular cylinder using ion wind, Exp. Fluids, 35, 541-552, (2003) |
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.
