Search academic texts

Information × Registration Number 0218U003558, 0117U001814 , R & D reports Title Influence of 2D and 3D effects on the propagation and absorption of electromagnetic waves in plasma heating in controlled thermonuclear fusion devices. popup.stage_title Head Grekov Dmytro Leonidovych, Registration Date 22-03-2018 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 The following studies have been carried out this year: A model for the propagation and absorption of the slow mode of fast magnet sound waves in the apparatus of a stellar type is developed. A three-dimensional numeric code was created for calculating slow mode fields, working in the real 3D geometry of the magnetic field of the stellarators. The first calculations were made using this code. A two-dimensional code for calculating the electromagnetic field of a fast magnetic-sound wave in tokamaks in the range of high harmonics of the cyclotron frequency of ions was constructed. Using the toroidal symmetry of the tokamak plasma, the code finds the solution of the Maxwell equations by the finite difference method for a single toroidal harmonic. The boundary conditions are put on the actual wall of the Tokamak camera. An RF antenna is modeled by the introduction of an "external" current into Ampere's law. The poloidal magnetic field holding and the contribution from the "thermal" part of the dielectric plasma tensor are included in the calculations using iterations. The code was checked by comparing calculations with known analytical solutions. A model was created and a computer simulation of a plasma near a branch of a non-shielded high-frequency (HF) antenna, similar to those used to heat a plasma in toroidal magnetic suspension units, was started. Product Description popup.authors В.В. Ольшанський В.В. Сергеева В.В. Яковлєва В.П. Єрьомін Д.Л.Греков К.К. Третьяк Н.Є. Селезньова О.В. Скорина Р.І. Журкіна Ю.М.Кучумов Я.Ф.Лелеко popup.nrat_date 2020-04-02 Close