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An arc heater for thermal environment simulation of hypersonic aircraft

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

Active Publication Date: 2021-01-22
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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  • Summary
  • 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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  • An arc heater for thermal environment simulation of hypersonic aircraft
  • An arc heater for thermal environment simulation of hypersonic aircraft
  • An arc heater for thermal environment simulation of hypersonic aircraft

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Embodiment Construction

[0030]In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031]Such asfigure 1 As shown, an embodiment of the present invention provides a schematic diagram of an arc heater for thermal environment simulation of a hypersonic aircraft. The arc heater includes a tubular electrode, a magnetic field coil and a moving mechanism 6.

[0032]The tubular electrode includes a negative electrode 1 and a pos...

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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 the arc root of the arc by a moving magnetic field.Background technique[0002]The arc heater is an important ground facility for the thermal environment simulation test of hypersonic aircraft. The arc heater uses arc discharge to heat the 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 greater impact on the simulation of the test approaching the real flight environment and improving the precision of the test.[0003]At present, arc heaters have the following defects: large local burnout of electrodes, short service life, low reliability, high failure rate under high-power, long-term operation conditions, and often lead to the failure of the arc heater during t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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