Engineering Physics Annotation << Back PERIODICAL STRUCTURES OF ION-ACOUSTIC VORTEXES IN A COLISSIONALLESS STRONGLY NONISOTERMAL PLASMA Movsesyants Yu.B. Rukhadze A.A. In the frame of two fluid electro hydrodynamics the equations which described two dimensional equilibrium of a lattice from closed ion currents in strongly nonisotermal plasma with boltsman’s distribution function of hot electrons and cold ions with zero temperature are formulated. The exact solutions for homogeneous and uncompressible plasma the nonlinear equations are obtained in limiting cases. It is shown that when flied speed is comparable with ion acoustic speed than the size of ion current cell became comparable with Debay length of immovable plasma. This means that in the considered nonlinear motion of plasma the collective interactions of particles are important. Key words: vortex periodical structures, nonisotermal plasma, ionacoustic speed. Contacts: E-mail: yumovsesyants@gmail.com E-mail: rukh@fpl.gpi.ru Pp. 22-27.