Parametric convection of a low-conducting liquid in an alternating electric field
| Autor: | B. L. Smorodin, A. V. Taraut |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Mechanical Engineering General Physics and Astronomy Charge (physics) Mechanics Instability Amplitude Nuclear magnetic resonance Electric field Quasiperiodic function Electrohydrodynamics Electric potential Nonlinear Sciences::Pattern Formation and Solitons Parametric statistics |
| Zdroj: | Fluid Dynamics. 45:1-9 |
| ISSN: | 1573-8507 0015-4628 |
| DOI: | 10.1134/s0015462810010011 |
| Popis: | The development of parametric electroconvective instability of a low-conducting liquid in a horizontal capacitor under the action of an alternating electric field is studied. The conditions on which the free charge is generated due to autonomous unipolar injection are considered. The charge distributions over the liquid at rest are determined analytically and numerically, respectively, for low and arbitrary amplitudes of the external field. The limits of parametric electroconvective instability are found within the framework of the linear theory. It is shown that the perturbations can manifest themselves in different ways depending on the modulation amplitude and frequency of the electric field and be of the subharmonic, synchronous, or quasiperiodic type of the response. The characteristics of the resonance action, namely, the amplitudes and the frequencies necessary for the efficient generation of electroconvection, are determined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|