A long time high temperature wind tunnel test chamber

A wind tunnel test, long-term technology, applied in aerodynamic test, machine/structural component test, instrument and other directions, can solve problems such as small heat flow, achieve the effect of simple structure and meet thermal protection technical indicators

Active Publication Date: 2019-03-12
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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Problems solved by technology

The air flow in the hot blast tunnel is the high-temperature supersonic test air flow generated by the expansion method after heating and compressing the test gas by arc pulse discharge. Although the temperature is high, the heat flow is small, generally not exceeding 100kW / m2. Therefore, in the case of limited test time, the thermal impact tunnel test chamber can meet the test requirements by ensuring that its heat sink is sufficient, and no separate heat protection measures are taken.

Method used

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  • A long time high temperature wind tunnel test chamber
  • A long time high temperature wind tunnel test chamber
  • A long time high temperature wind tunnel test chamber

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0033] figure 1It is a structural schematic diagram of the bulkhead of the long-time high-temperature wind tunnel test chamber of the present invention. Such as figure 1 As shown, the long-term high-temperature wind tunnel test cabin includes a bulkhead, and the bulkhead includes an inner wall 1000 and an outer wall 2000; wherein, the inner wall 1000 and the outer wall 2000 are connected by a partition 3000 to form a water cooling channel 4000, and cooling water is introduced into the water cooling channel 4000 .

[0034] In this embodiment, a water-cooling channel is provided between the inner wall and the outer wall of the bulkhead, so that the water-cooling channel of the entire bulkhead is filled with cooling water, and the heat of the wall surface is taken away by means of forced convection heat exchange between the cooling water and the wall surface, ensuring ...

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Abstract

The invention discloses a long-time high-temperature wind tunnel test cabin. A cabin wall of the test cabin comprises an inner wall and an outer wall, wherein the inner wall is connected with the outer wall through a partition to form a water-cooled channel; and cooling water is fed into the water-cooled channel. The problem of long-time thermal protection of the wind tunnel test cabin in a severe hot environment is solved.

Description

technical field [0001] The invention relates to the technical field of wind tunnel heat protection, in particular to a long-time high-temperature wind tunnel test chamber. Background technique [0002] The high-temperature gas flow supersonic thermal structure wind tunnel is mainly used to simulate the aerothermal and aerodynamic performance of aircraft at a certain altitude. In the gas high-temperature gas flow wind tunnel, the test chamber is an important part, which is mainly used to set up and install the test model and its test and measurement devices. measurement and observation. [0003] According to the different thermal environment of wind tunnel air flow, the test cabin can be divided into normal temperature wind tunnel test cabin and high temperature wind tunnel test cabin. The thermal environment of the normal temperature wind tunnel test chamber is relatively low, and it is mostly used in the normal temperature wind tunnel of civil systems. The test chamber do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/02G01M9/04
CPCG01M9/02G01M9/04
Inventor 田宁邹样辉齐斌赵玲曹知红岳晖张凯张利嵩那伟杨驰李彦良夏吝时肖泽娟张昕曹宇清姜一通王镭李文浩鲁宇朱广生李建林孟刚周岩水涌涛张嵒陈卫国刘召军
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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