Title :
Effects of Joule heating on EHD-enhanced natural convection in an enclosure
Author :
Yang, H. ; Lai, F.C.
Author_Institution :
Sch. of Aerosp. & Mech. Eng., Oklahoma Univ., Norman, OK, USA
Abstract :
Electrohydrodynamically enhanced natural convection in an enclosure is numerically examined in this paper with a particular interest on the effects of Joule heating. Attention has also been focused on the stability of the flow and temperature fields under the influence of an electric field. Calculations have covered a wide range of parameters, i.e., 10⩽V0⩽17.5 kV and 109⩽Ra⩽106. Results which include the transient variation of isotherm and streamline patterns as well as a parameterization of the Nusselt vs. Rayleigh number relation in terms of the electrical field conditions are presented
Keywords :
electric fields; electrohydrodynamics; flow instability; heating; natural convection; temperature distribution; thermal analysis; EHD-enhanced natural convection; Joule heating; Nusselt vs. Rayleigh number relation; electric field conditions; enclosure; flow field stability; isotherm patterns; streamline patterns; temperature field stability; transient variation; Aerospace engineering; Corona; Current density; Differential equations; Electrodes; Heat transfer; Maxwell equations; Resistance heating; Temperature; Wire;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.626307
