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Journal of Enhanced Heat Transfer
Fator do impacto: 0.562 FI de cinco anos: 0.605 SJR: 0.211 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimir: 1065-5131
ISSN On-line: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v7.i6.20
pages 371-383

Electrohydrodynamic (EHD) Heat Transfer Enhancement in an Aviation Working Fluid: Effect of Electrode Material and Polarity

J. S. Paschkewitz
Mechanical and Thermal Systems Branch, Air Force Research Laboratory, Wright-Patterson AFB, Ohio, USA
David M. Pratt
Thermal Structures Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson Air Force Base, OH 45433, USA

RESUMO

Electrohydrodynamic heat transfer enhancement in the aviation coolant PAO was examined using a concentric wire-cylinder test section. Stainless steel (alloy 304), brass (alloy 260), and bronze (alloy 510) wire electrodes were used with both negative and positive polarity. The outer tube was 316 stainless steel. Bronze gave enhancements over an order of magnitude greater than either brass or stainless steel, with smaller increases in pressure drop and lower electrical power requirements for both positive and negative polarities. Several explanations are given for the differences in performance are discussed.


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