Cooling of electronic equipment with ionic wind

Electronic equipment becomes faster, smaller and more complex and their thermal management becomes more important. Efficiently cooling methods for the electronic equipment can be classified by the fluid flow method. Electrohyrdrodynamics (EHD) method is one of the mand contains motions of ionized particles or molecules and their in teractions with electric fields and the surrounding fluid. One of the main objectives of the present study was to develop an electrohydrodynamic (EHD) flow in air produced by the electric corona discharge in the cavity with different aspectratios. The numerical results included a variety of cavity aspect ratio, Rayleigh Number, heater-cooler lenghts, potential voltages and distance between point and ground electrode. Governing equations are solved using finite difference method. Results are plotted as streamlines, isotherms and voltage distribution. The numerical results reveal that flow and heat transfer enhancement sare significantly dependent on aspect ratio and distance between point and ground electrode.