Ionic winds for locally enhanced cooling
Top Cited Papers
- 1 September 2007
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 102 (5) , 053302
- https://doi.org/10.1063/1.2776164
Abstract
Ionic wind engines can be integrated onto surfaces to provide enhanced local cooling. Air ions generated by field-emitted electrons or a corona discharge are pulled by an electric field and exchange momentum with neutral air molecules, causing air flow. In the presence of a bulk flow, ionic winds distort the boundary layer, increasing heat transfer from the wall. Experiments demonstrate the ability of ionic winds to decrease the wall temperature substantially in the presence of a bulk flow over a flat plate, corresponding to local enhancement of the heat transfer coefficient by more than twofold. Multiphysics simulations of the corona and flow describe the ability of the ionic wind to distort a bulk flow boundary layer and confirm the experimentally observed heat transfer enhancement trends.This publication has 13 references indexed in Scilit:
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