Stabilizing Effect of Emitted Charges on the Cone-like Shapes of Electrified Menisci
نویسندگان
چکیده
When a meniscus i s f o m e d a t the free end o f a c a p i l l a r y tube and i s subjec ted t o the e f f e c t o f a s u f f i c i e n t l y in tense e l e c t r i c f i e l d , the meniscus may d i s p l a y the shape o f a cone. Depending upon the experiment condi t ions, a f i e l d e f f e c t charge emission, the product ion o f d rop le ts o r corona discharge may be observed a t the apex o f the cone. The cone shape i s essen t ia l t o generate the f i r s t two phenomena. I n t h i s study, the p r o f i l e s o f e l e c t r i f i e d menisci were ca lcu la ted t a k i n g account o f the r e g u l a t i n g e f f e c t t h a t charge emission may e x e r t on the e l e c t r i c f i e l d a t the apex o f the cone. The ca lcu la t ions p a r t i c u l a r l y show t h a t conica l meniscus e q u i l i b r i u m i s poss ib le over a whole range o f e l e c t r i c p o t e n t i a l and hydrost a t i c pressure values.
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