A.G. Gluschenko - Dr. Sc. (Phys.-Math.), Professor, Head of Department of Physics, Volga State University of Telecommunications and Informatics (Samara). E-mail: gag646@yandex.ru E.P. Gluschenko - Ph. D. (Phys.-Math.), Associate Professor, Department of Physics, Volga State University of Telecommunications and Informatics (Samara). E-mail: gag646@yandex.ru V.V. Ivanov - Dr. Sc. (Eng.), Professor, Dean of Faculty of Information-Technical Service, Volga Region State University of Service (Togliatti). E-mail: Ivanov@tolgas.ru E.S. Ustinova - Senior Lecturer, Department of Information and Electronic Service, Volga Region State University of Service (Togliatti). E-mail: nik-098@yandex.ru

The article examines the features of distribution of direct and inverse electromagnetic waves in a multimode regime in the pipeline, filled with moving medium. The article shows that the movement of the medium leads to non-reciprocity parameters of forward and backward waves of fashion. The analysis shows that an increase in the index mode and speed of the medium degree of non-reciprocity forward and backward waves increases. With the increasing speed of the medium along the axis of the waveguide, and an increase in the Fresnel drag coefficient of electromagnetic waves of the fluid increases the critical length of the forward and backward waves of propagating modes, as well as their number. It is shown that the change in velocity of the medium makes it possible to change the critical parameters of the waveguide. The formulas for calculating propagation constant forward and backward waves and the critical parameters in the waveguide filled with the fluid. The article presents the plots of the critical wavelength and the propagation constants of the speed of the media.

 

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