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TECHNICAL NOTES

Numerical Study of EHD-Enhanced Forced Convection Using Two-Way Coupling

[+] Author and Article Information
M. Huang, F. C. Lai

School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019

J. Heat Transfer 125(4), 760-764 (Jul 17, 2003) (5 pages) doi:10.1115/1.1578505 History: Received July 11, 2002; Revised March 17, 2003; Online July 17, 2003
Copyright © 2003 by ASME
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References

Yabe,  A., Mori,  Y., and Hijikata,  K., 1978, “EHD Study of the Corona Wind Between Wire and Plate Electrodes,” AIAA J., 16, pp. 340–345.
Takimoto,  A., Tada,  Y., Yamada,  K., and Hayashi,  Y., 1988, “Heat Transfer Enhancement in a Convective Field With a Corona Discharge,” Trans. Jpn. Soc. Mech. Eng., Ser. B, 54(449), pp. 695–703.
Kulkarni, S. S., and Lai, F. C., 1995, “Effects of Electric Field on Mixed Convection in a Vertical Channel,” Proceedings of the 1995 National Heat Transfer Conferences, 8 , pp. 59–67.
Mathew, J., and Lai, F. C., 1995, “Enhanced Heat Transfer in a Horizontal Channel With Double Electrodes,” Conference Record of the 1995 IEEE Industry Applications Society 30th Annual Meeting, 2 , pp. 1472–1479.
Owsenek,  B. L., and Seyed-Yagoobi,  J., 1997, “Theoretical and Experimental Study of Electrohydrodynamic Heat Transfer Enhancement Through Wire-Plate Corona Discharge,” ASME J. Heat Transfer, 119, pp. 604–610.
Lai,  F. C., 1998, “Effects of Buoyancy on EHD-Enhanced Forced Convection in a Horizontal Channel,” J. Thermophys. Heat Transfer, 12, pp. 431–436.
Lamb,  D. W., and Woolsey,  G. A., 1995, “Characterization and Use of an Optical-Fiber Interferometer for Measurement of the Electric Wind,” Appl. Opt., 34, pp. 1608–1616.
Yamamoto,  T., and Velkoff,  H. R., 1981, “Electrohydrodynamics in an Electrostatic Precipitator,” J. Fluid Mech., 108, pp. 1–18.
Davidson, J. H., Kulacki, F. A., and Dunn, P. F., 1987, “Convective Heat Transfer With Electric and Magnetic Field,” Handbook of Single-Phase Convective Heat Transfer, edited by S. Kakac et al., Wiley, New York, Chap. 9.
Huang, M., and Lai, F. C., 2002, “Effects of Joule Heating on EHD-Enhanced Natural Convection in an Enclosure,” AIAA Paper 2002–3318.
Roache, P. J., 1998, Fundamentals of Computational Fluid Dynamics, Hermosa, Albuquerque, New Mexico.
Lai,  F. C., McKinney,  P. J., and Davidson,  J. H., 1995, “Oscillatory Electrohydrodynamic Gas Flows,” J. Fluid Eng., 117, pp. 491–497.
Shah,  R. K., and London,  A. L., 1978, “Laminar Flow Forced Convection in Ducts,” Adv. Heat Transfer, 1, pp. 189–191.

Figures

Grahic Jump Location
Heat transfer enhancement as a function of EHD number: (a) V0=10.0 kV, (b) V0=12.5 kV, (c) V0=15.0 kV, (d) V0=17.5 kV
Grahic Jump Location
Modification of electric field by air flow, V0=15 kV and ui=5 m/s: (a) charge density, and (b) potential (one-way coupling—solid line, two-way coupling—dashed line)
Grahic Jump Location
Temperature fields at V0=15 kV and Re=450, (a) τ=57.9, (b) τ=58.5, (c) τ=59.1, (d) τ=59.7, and (e) τ=60.2, (two-way coupling, Δθ=0.1)
Grahic Jump Location
Temperature fields at V0=15 kV and Re=450, (a) τ=55.8, (b) τ=56.4, (c) τ=57.0, (d) τ=57.6, and (e) τ=58.2, (one-way coupling, Δθ=0.1)
Grahic Jump Location
Flow fields at V0=15 kV and Re=450, (a) τ=57.9, (b) τ=58.5, (c) τ=59.1, (d) τ=59.7, and (e) τ=60.2, (two-way coupling, ΔΨ=0.2)
Grahic Jump Location
Flow fields at V0=15 kV and Re=450, (a) τ=55.8, (b) τ=56.4, (c) τ=57.0, (d) τ=57.6, and (e) τ=58.2, (one-way coupling, ΔΨ=0.2)
Grahic Jump Location
A two-dimensional channel with constant wall temperature and one electrode wire located at the center (the shaded area represents the computational domain)

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