...Xin Feng; James E. Bryan The effect of electric fields applied to two-phase impingement heat transfer is explored for the first time. The electric field applied between a capillary tube and heated surface enhances the heat transfer by controlling the free boundary flow modes from discreet drops...

...Matthew R. Pearson; Jamal Seyed-Yagoobi A three-dimensional mathematical model is presented that models bubble deformation of a dielectric fluid due to the presence of a nonuniform electric field and calculates the net dielectrophoretic force that is exerted by the electric field on the bubble...

... advantage of this oscillatory flow phenomenon induced by electric field. To verify this speculation, computations have been performed for flows with Reynolds numbers varying from 0 to 4800 and the dimensionless EHD number (which signifies the effect of electric field) ranging from 0.05 to ∞ . The results...

...Zhen-Hua Liu; Jie Yi In each run with the applied electric field, both the mass rate and the inlet oil-temperature were fixed, a series of heat transfer characteristics were measured by changing the applied DC high voltage and the heat flux. Then, other test run was carried out at another fixed...

...M. Huang, Graduate Research Assistant; F. C. Lai, Associate Professor Numerical results are presented for heat transfer enhancement using electric field in forced convection in a horizontal channel. The main objective of the present study is to verify the assumption that is commonly used...

...Y. Feng; J. Seyed-Yagoobi The mechanism of heat transfer enhancement and pressure drop penalty in the presence of a radial electric field for the two-phase (liquid/vapor) annular flow is presented. The turbulence spectral theory shows that the radial electric field fluctuation changes the turbulent...

...Y. Feng; J. Seyed-Yagoobi The flow regimes associated with a horizontal internal two-phase (liquid-vapor) flow in the presence and absence of the electric field are investigated with the linear stability analysis. The momentum interchange due to the entrainment between the two phases is included...

... resistance welding Contact Resistance Electric Fields Heat Transfer Manufacturing Resistance spot welding has been widely used in joining thin workpieces due to its light weight and easy manufacturing. Water-cooled copper electrodes apply a load to squeeze the workpieces. In addition...

...J. Darabi, Mem. ASME; M. M. Ohadi, Fellow ASME; S. V. Desiatoun The effect of an electric field on the falling-film evaporation of refrigerant R-134a on a vertical plate and three commercially available tubes was investigated experimentally. The plate test section was 25.4 mm wide and 76.2 mm long...

...J. Darabi; M. M. Ohadi; S. V. Dessiatoun Heat transfer enhancement of falling-film evaporation on commercially available horizontal tubes using an applied electric field was studied experimentally. The tube surfaces tested included: smooth, 19 fins per inch (19 fpi) low-fin type, and Turbo BIII...

... December 1997 04 November 1999 convection boiling electrohydrodynamics two-phase flow Electric Fields Enhancement Heat Transfer Phase Change Two-Phase Passive and active enhancement methods for improving convective boiling heat transfer are continuously being developed...

...M. C. Zaghdoudi; M. Lallemand An experimental study of the action of an intense electric field on the pool boiling of n-pentane is presented. By the application of a 25 kV/cm electric field strength, a threefold heat transfer enhancement is obtained. The effect of the electric field polarity has...

...; revision received, Aug. 1, 1999. Associate Technical Editor: P. Ayyaswamy 01 Dec 1998 01 Aug 1999 electrohydrodynamics stratified flow heat transfer pumps two-phase flow Electric Fields Heat Transfer Pumps Stratified Two-Phase...

...M. A. Hader; M. A. Jog Heat transfer to a drop of a dielectric fluid suspended in another dielectric fluid in the presence of an electric field is investigated. We have analyzed the effect of drop deformation on the heat transport to the drop. The deformed drop shape is assumed to be a spheroid...