Instability of horizontal fluid interface in a perpendicular electric field: Observational study

✍ Scribed by H. Terasawa; Y.H. Mori; K. Komotori

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 1020 KB
• Volume: 38
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(83)80116-x

✦ Synopsis

In order to obtain some insight into the potential applicability of electrohydrodynamic augmentation to the direct-contact heat or mass exchange between stratified fluids, observations were made of the phenomena related to the field-induced instabilities at stationary interfaces between air and slightly-conducting oil, sligbtlyconducting oil and conducting aqueous solution, and two slightly-conducting oils. Established theories assuming the interface conducting or charge-free failed to predict the onset of instability under d.c. or a.c. fields in the last fluid system of the three. The geometries and fluid motions at d&orbed interfaces arc described laying stress on those, found in the last fluid system, which are very peculiar and have not been reported so far.