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An optimization method for the additional magnetic field potential pattern of a plasma vortex drive device

A plasma and driving device technology, applied in the field of plasma generator design, can solve the problems of difficulty in thermal protection of the center electrode, affecting the working life of the device, etc.

Active Publication Date: 2021-03-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This phenomenon is very unfavorable for some engineering applications, which brings great difficulty to the thermal protection of the central electrode and directly affects the working life of the device

Method used

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  • An optimization method for the additional magnetic field potential pattern of a plasma vortex drive device
  • An optimization method for the additional magnetic field potential pattern of a plasma vortex drive device
  • An optimization method for the additional magnetic field potential pattern of a plasma vortex drive device

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Embodiment Construction

[0120] 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.

[0121] The invention provides a method for optimizing the additional magnetic field position type of a plasma vortex drive device, which specifically includes the following steps:

[0122] 1. Establish a vortex motion model

[0123] like 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 poi...

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Abstract

The invention provides a method for optimizing an additional magnetic field pattern of a plasma vortex driving device. According to the method, an analytical functional relationship between specific additional magnetic field distribution and heat dissipation distribution is established, the influence of the distribution characteristics of the additional magnetic field on the heat dissipation distribution can be rapidly and accurately analyzed, a large number of repeated experiments or numerical simulation is avoided, and a large number of time and material resources are saved. According to theoptimized additional magnetic field type obtained through the optimization method, joule heat dissipation on the surface of the cathode of the vortex driving device can be reduced by 19%, and viscousheat dissipation can be reduced by 68%.

Description

technical field [0001] The invention relates to the field of plasma generator design, and relates to an optimization method of an additional magnetic field position pattern for relieving thermal ablation of a cathode of a plasma vortex drive device. 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
Inventor 汤海滨张凯宇
Owner BEIHANG UNIV
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