We show that time-oscillating electric fields applied to plasmas present in flames create steady flows of gas. Ions generated within the flame move in the field and migrate a distance delta before recombining; the net flow of ions away from the flame creates a time-averaged force that drives the steady flows observed experimentally. A quantitative model describes the response of the flame and reveals how delta decreases as the frequency of the applied field increases. Interestingly, above a critical frequency, ac fields can be used to manipulate flames at a distance without the need for proximal electrodes.

ac electric fields drive steady flows in flames / Drews, AM; Cademartiri, L; Chemama, ML; Brenner, MP; Whitesides, GM; Bishop, KJM. - In: PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS. - ISSN 1539-3755. - 86:3(2012). [10.1103/PhysRevE.86.036314]

ac electric fields drive steady flows in flames

Cademartiri L;
2012

Abstract

We show that time-oscillating electric fields applied to plasmas present in flames create steady flows of gas. Ions generated within the flame move in the field and migrate a distance delta before recombining; the net flow of ions away from the flame creates a time-averaged force that drives the steady flows observed experimentally. A quantitative model describes the response of the flame and reveals how delta decreases as the frequency of the applied field increases. Interestingly, above a critical frequency, ac fields can be used to manipulate flames at a distance without the need for proximal electrodes.
ac electric fields drive steady flows in flames / Drews, AM; Cademartiri, L; Chemama, ML; Brenner, MP; Whitesides, GM; Bishop, KJM. - In: PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS. - ISSN 1539-3755. - 86:3(2012). [10.1103/PhysRevE.86.036314]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2874717
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