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Electric arc heater for thermal environment simulation of hypersonic flight vehicle

A thermal environment simulation and arc heater technology, which is applied to the arc heater for thermal environment simulation of hypersonic aircraft, and the field of moving magnetic field to control arc arc root, can solve the problems of low reliability, short service life, large electrode burnout, etc. To achieve the effect of improving stability and prolonging electrode life

Active Publication Date: 2020-07-17
中国空气动力研究与发展中心超高速空气动力研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing technology cannot meet the needs of a wide range of arc heaters, various test states and working condition parameters for stable operation, and the electrodes have a large local burning loss, short service life and low reliability. Aiming at the defects in the prior art, an arc heater for simulating the thermal environment of a hypersonic vehicle and a method for controlling arc roots by moving a magnetic field are provided

Method used

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  • Electric arc heater for thermal environment simulation of hypersonic flight vehicle
  • Electric arc heater for thermal environment simulation of hypersonic flight vehicle
  • Electric arc heater for thermal environment simulation of hypersonic flight vehicle

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Such as figure 1 As shown, the schematic diagram of the arc heater used for simulating the thermal environment of a hypersonic aircraft provided by the embodiment of the present invention. The arc heater comprises tubular electrodes, magnetic field coils and a moving mechanism 6 .

[0032] Wherein the tubular electrode includes a neg...

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Abstract

The invention relates to an electric arc heater for thermal environment simulation of a hypersonic flight vehicle and a method of moving a magnetic field to control electric arc roots. The electric arc heater comprises a tubular electrode, a magnetic field coil and a moving mechanism, wherein the tubular electrode comprises a negative electrode, a positive electrode and an arc chamber for connecting the negative electrode and the positive electrode to form an insulating interval; tangential air inlet holes are formed in the air chamber and are used for introducing high pressure rotating air; the magnetic field coil comprises a first magnetic field coil and a second magnetic field coil which are respectively arranged outside the negative electrode and the positive electrode in a sleeved mode; and the moving mechanism is used for moving the first magnetic field coil and / or the second magnetic field coil on the axial direction of the tubular electrode. The electric arc heater changes theposition of axial component of lorentz force of a magnetic field by changing the position of the magnetic field coil, so that the electric arc roots are balanced with the aerodynamic axial component at a certain position on the axial direction of the inner wall of the electrode. Thus, the position of the electric arc roots is controlled, and the stability of electric arc operation is improved.

Description

technical field [0001] The invention relates to the technical field of hypersonic aircraft, in particular to an arc heater for thermal environment simulation of a hypersonic aircraft and a method for controlling an arc root by a moving magnetic field. Background technique [0002] The arc heater is an important ground facility for thermal environment simulation tests of hypersonic vehicles. The arc heater uses arc discharge to heat air to form a high-temperature and high-speed flow field for testing. The accuracy, repeatability and time stability of the operating parameters of the arc heater have a great influence on the test simulation approaching the real flight environment and improving the precision of the test. [0003] At present, the arc heater has the following defects: large local burning of the electrode, short service life, low reliability, high failure rate under high power and long-term operation conditions, which often leads to the failure of the arc heater in ...

Claims

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Application Information

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IPC IPC(8): F24H3/04F24H9/18F24H9/20B64G7/00
CPCB64G7/00F24H3/0405F24H9/1863F24H9/2071F24H2250/10
Inventor 隆永胜杨斌赵顺洪袁竭
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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