Suscripción a Biblioteca: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-130-9

International Heat Transfer Conference 6
August, 7-11, 1978, Toronto, Canada

HEAT TRANSFER AUGMENTATION AROUND A DOWNWARD-FACING FLAT PLATE BY NON-UNIFORM ELECTRIC FIELDS

Get access (open in a dialog) DOI: 10.1615/IHTC6.2880
pages 171-176

Sinopsis

The corona wind caused by non-uniform electric fields has been experimentally reported so far to be effectively applicable to heat transfer augmentation. In this paper, first, a theoretical and experimental study has been conducted to make clear such a mechanism of augmentation of heat transfer to a downward-facing flat plate due to a non-uniform electric field caused by a fine wire anode and a plate cathode as that ions produced near the wire electrode move to the plate introducing the bulk convective motion of fluid caused by collision of ions and neutral molecules. Secondly, experiments have been carried out by using twin and multi-wire electrodes and the plate to find the augmentation performance of heat transfer for the number and the arrangement of the wire electrodes, to explain the performance from the electrohydrodynamical stand-point based on the theoretical investigation and to obtain important and fundamental data to apply the corona wind to cooling a body without an externally forced convective flow.