Space charge generation in flows of weakly conductive media with large difference of charged particles' mobilities

Electrification in boundary domains of flows of partially ionized multicomponent gas mixtures through channels whose conducting walls are exposed to a constant potential is studied. In such media, in the absence of applied electric fields, electrification is due to significantly different values of mobility of charged particles of opposite signs. The influence of the interaction of electrons and gas ions with the walls of the channel on the value of the space electric charge, the thickness and structure of the charged boundary layer and the value of the convective electric current is analyzed.