Analytical model for electrohydrodynamic thrust
| Autor: | Alexander Mamishev, Yifei Guan, Igor Novosselov, Ravi Sankar Vaddi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
General Mathematics Physics::Medical Physics Momentum transfer Fluid Dynamics (physics.flu-dyn) General Engineering FOS: Physical sciences General Physics and Astronomy Thrust Physics - Fluid Dynamics Mechanics 01 natural sciences Physics - Plasma Physics 010305 fluids & plasmas Plasma Physics (physics.plasm-ph) Ion wind Ionization Electric field 0103 physical sciences Electrohydrodynamics 010306 general physics Corona discharge Research Article Charged species |
| Zdroj: | Proc Math Phys Eng Sci |
| ISSN: | 1471-2946 1364-5021 |
| DOI: | 10.1098/rspa.2020.0220 |
| Popis: | Electrohydrodynamic (EHD) thrust is produced when ionized fluid is accelerated in an electric field due to the momentum transfer between the charged species and neutral molecules. We extend the previously reported analytical model that couples space charge, electric field, and momentum transfer to derive thrust force in 1D planar coordinates. The electric current density in the model can be expressed in the form of Mott-Gurney law. After the correction for the drag force, the EHD thrust model yields good agreement with the experimental data from several independent studies. The EHD thrust expression derived from the first principles can be used in the design of propulsion systems and can be readily implemented in the numerical simulations. 12 pages, 4 figures will be submitted to Proceedings of Royal Society A |
| Databáze: | OpenAIRE |
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