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Subsonic-speed ladle cover ablation test device under high-entropy condition

A kind of ablation test and subsonic technology, which is applied in the direction of aircraft component testing, etc., can solve the problems that cannot meet the test requirements, and achieve the effects of improving survivability, reducing cooling water flow, and increasing service life

Pending Publication Date: 2020-01-21
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing envelope ablation test technology can only adapt to the test with the total enthalpy of airflow below 10MJ / kg, and cannot meet the test requirements under the condition of higher total enthalpy of airflow

Method used

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  • Subsonic-speed ladle cover ablation test device under high-entropy condition
  • Subsonic-speed ladle cover ablation test device under high-entropy condition
  • Subsonic-speed ladle cover ablation test device under high-entropy condition

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Embodiment Construction

[0043] The present invention is described in detail in conjunction with the accompanying drawings and specific implementation.

[0044] The invention provides a subsonic envelope ablation test device for high enthalpy conditions, such as figure 1 As shown, it includes a shroud nozzle 1 , a throat strut 2 , an adapter section 4 and a model bracket 5 . in:

[0045] The covering nozzle 1 and the model bracket 5 are fixed on the adapter flange 3 . The throat strut 2 is installed on the model bracket 5 through the transition section 4, the connection between the throat strut 2 and the transition section 4 is guaranteed to coincide with the central axis of the envelope nozzle 1, the throat part of the throat strut 2 Located inside the envelope nozzle 1.

[0046] Specifically, such as figure 2 As shown, when the test is carried out, the test model is installed on the throat strut 2, and the annular channel between the outer surface of the test model and the inner surface of the ...

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Abstract

The invention discloses a subsonic-speed ladle cover ablation test device under high-entropy condition. The device comprises a ladle cover spraying pipe, a throat way support rod, a transfer flange, atransfer section and a model bracket. The ladle cover spraying pipe and the model bracket are fixed on the transfer flange. The throat way support rod is connected with the model bracket by the transfer section; and a throat way part of the throat way support rod is positioned in the ladle cover spraying pipe. The overlap with the center axis of the ladle cover spraying pipe is guaranteed throughconnection between the throat way support rod and the transfer section. During testing, a test model is mounted on the throat way support rod, an annular channel between the outer surface of the testmodel and the inner surface of the ladle cover spraying pipe is a high-entropy airflow channel, and the flowing of air currents in the ladle cover spraying pipe is subsonic-speed flowing. The devicecan be applied to aerospace pneumatic thermal protection ground simulation tests in high-entropy airflow state.

Description

technical field [0001] The invention relates to a subsonic envelope ablation test device used under high enthalpy conditions, and belongs to the field of aerodynamic and thermal ground simulation test devices for aerospace vehicles. [0002] technical background [0003] In the ground simulation test, it is a better technical approach to study the ablation performance of the heat-resistant material on the model surface by using the subsonic envelope ablation test technology. Its biggest feature is that it can confine high-temperature gas with limited energy on the surface of the model, so that high-temperature gas with a small mass flow rate can be used to simulate the flight environment of a larger-scale test model. [0004] At present, with the construction and use of high-power and high-enthalpy heating equipment, the development of aircraft has put forward higher requirements for aerothermal ground simulation tests. The existing envelope ablation test technology can only...

Claims

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Application Information

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IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 刘雨翔杨汝森文鹏欧东斌张友华
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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