The effect of temperature-induced variations in charge carrier mobility on a stationary electrohydrodynamic instability

Autor:	W. J. Worraker, A. T. Richardson
Rok vydání:	1979
Předmět:	Temperature gradient Electron mobility Materials science Condensed matter physics Mechanics of Materials Mechanical Engineering Electric field Liquid dielectric Absolute value Electrohydrodynamics Condensed Matter Physics Space charge Instability
Zdroj:	Journal of Fluid Mechanics. 93:29-45
ISSN:	1469-7645 0022-1120
Popis:	An externally applied d.c. electric field is known to produce instability in a plane layer of dielectric liquid heated from above. The stationary linear instability of a unipolar charge injection equilibrium for which carrier mobility depends linearly on temperature is investigated. It is found that the sign of the temperature gradient in relation to the emitting electrode determines whether or not such instability can occur, and that two types of instability can be distinguished: (i) a space charge modified Bénard mode; and (ii) a thermally modified space charge mode. It is shown that the critical voltage is highly dependent upon the absolute value of mobility and its variation across the layer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::86054a5f79bf19c329438bf51c05c3ba https://doi.org/10.1017/s0022112079001762 Zobrazit plný text záznamu