Investigation of the EHD Structure of Flow of a High-Temperature Gas Mixture with a Non-Uniform Source of Charged Particles

The electrohydrodynamic (EHD) structure of flow of a high-temperature partially ionized chemically reacting gas mixture through in a plane channel is considered. The plume of hydrocarbon flame at the atmospheric pressure can be an example of such a flow. It is well known that the chemiionization rea...

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Bibliographic Details
Published in:Fluid dynamics 2022-12, Vol.57 (6), p.789-795
Main Authors: Vlasov, P. A., Pankrat’eva, I. L., Polyanskii, V. A.
Format: Article
Language:English
Subjects:
Boundaries
Charged particles
Classical and Continuum Physics
Classical Mechanics
Combustion
Electric fields
Electrohydrodynamics
Engineering Fluid Dynamics
Fluid- and Aerodynamics
Gas mixtures
High temperature gases
Inhomogeneity
Investigations
Ionization
Physics
Physics and Astronomy
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Summary:The electrohydrodynamic (EHD) structure of flow of a high-temperature partially ionized chemically reacting gas mixture through in a plane channel is considered. The plume of hydrocarbon flame at the atmospheric pressure can be an example of such a flow. It is well known that the chemiionization reactions are the source of charged particles in the combustion processes. Clearly, there is a strong spatial inhomogeneity of the ionization source on the boundaries of the combustion zone. It is shown that in this case narrow zones of space electric charge (similar to the bipolar double layers) are formed in the neighborhood of the boundaries and the Coulomb forces that act on the behavior of the burning medium appear here even in the absence of the external applied electric field. The regime of combustion in which the major part of the plume becomes positively charged is revealed.
ISSN:0015-4628
1573-8507
DOI:10.1134/S001546282260119X