Efficiency evaluation method of plasma vortex generator

A plasma and generator technology, applied in the field of ion generator design optimization, can solve problems such as the inability to measure the relationship between viscous dissipation, Joule dissipation and output vortex kinetic energy, and the inability to use vortex drive to evaluate the efficiency of the device.

Active Publication Date: 2020-01-17
BEIHANG UNIV
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Problems solved by technology

These one-dimensional analytical solutions can explain part of the mechanism in the channel of the device, but because the effects of viscous force, Lorentz force, and inertial force on the plasma in two-dimensional space cannot be fully considered, viscous dissipation and Joule dissipation cannot be measured. and the relationship between the output vortex kinetic energy, so it cannot be used for the efficiency evaluation of this type of vortex drive

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  • Efficiency evaluation method of plasma vortex generator
  • Efficiency evaluation method of plasma vortex generator
  • Efficiency evaluation method of plasma vortex generator

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Embodiment Construction

[0121] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0122] The invention provides a method for evaluating the efficiency of a plasma vortex drive device, which specifically includes the following steps:

[0123] 1. Establish a vortex motion model

[0124] Such as figure 1 As shown, in the coaxial cylindrical electrode channel under the action of the axial additional magnetic field of the plasma vortex generator, a cylindrical coordinate system is established, the axial coordinate z points from the entrance to t...

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Abstract

According to the efficiency evaluation method for the plasma vortex driving device, the effects of viscous force, Lorentz force and inertia force on plasmas in a two-dimensional space are comprehensively considered, and the relation among viscous dissipation, joule dissipation and output vortex kinetic energy can be measured; the two-dimensional infinite series analytic expression convergence of the evaluation method is rapid, the convergence speed is irrelevant to the plasma physical property parameters, the device current and the magnetic field intensity, the efficiency of the vortex drivingdevice can be accurately and rapidly calculated, and then guidance can be provided for device efficiency optimization under wide working conditions.

Description

technical field [0001] The invention relates to the field of plasma generator design optimization, and relates to an efficiency evaluation method of a plasma vortex drive device, which can be used for the optimization of the plasma vortex generator. Background technique [0002] The plasma vortex driving device is generally composed of coaxial cylindrical electrodes and an axial additional magnetic field. This type of device can use the Lorentz force in the orthogonal electromagnetic field to accelerate the viscous plasma in the angular direction, and form a vortex at the exit. swirl jet. At present, this plasma vortex driving device is widely used in: cyclotron plasma generators, additional field magnetic plasma thrusters, plasma centrifuges, and controllable fusion experimental devices. [0003] The purpose of these application devices is to realize the conversion from electric energy to angular vortex kinetic energy by means of a strong additional magnetic field. At pre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01R31/00G06F119/14
CPCG01R31/00
Inventor 汤海滨张凯宇
Owner BEIHANG UNIV
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