Electrohydrodynamics of stationary cone-jet streaming | Zendy

A. V. Subbotin | Zendy; A. N. Semenov | Zendy

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Electrohydrodynamics of stationary cone-jet streaming

Author(s) -

A. V. Subbotin,

A. N. Semenov

Publication year - 2015

Publication title -

proceedings of the royal society a mathematical physical and engineering sciences

Language(s) - English

Resource type - Journals

eISSN - 1471-2946

pISSN - 1364-5021

DOI - 10.1098/rspa.2015.0290

Subject(s) - electrohydrodynamics , conical surface , mechanics , electric field , jet (fluid) , nozzle , ligand cone angle , materials science , streaming current , electrical conductor , optics , physics , thermodynamics , nanotechnology , electrokinetic phenomena , composite material , quantum mechanics

We discover novel types of stationary cone-jet steams emitting from a nozzle of a syringe loaded with a conductive liquid. The predicted cone-jet-flow geometries are based on the analysis of the electrohydrodynamic equations including the surface current. The electric field and the flow velocity field inside the cone are calculated. It is shown that the electric current along the conical stream depends on the cone angle. The stable values of this angle are obtained based on the Onsager’s principle of maximum entropy production. The characteristics of the jet that emits from the conical tip are also studied. The obtained results are relevant both for the electrospraying and electrospinning processes.

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