Pneumatic revolving door device and method for self-starting test outlet of shock tunnel air inlet channel

A shock tunnel and air inlet technology, applied in the field of pneumatic revolving door device at the exit of the shock tunnel inlet self-starting test, can solve the problem of blowing away, difficult to control the quality of the preset block, and the inability to enter the air inlet Self-starting test throttling and other issues, to achieve the effect of reliable test basis
CN110333044AActive Publication Date: 2019-10-15CHINA AERODYNAMICS RES & DEV CENT
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA AERODYNAMICS RES & DEV CENT
Publication Date
2019-10-15

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Abstract

The invention provides a pneumatic revolving door device for a self-starting test outlet of a shock tunnel air inlet channel, a method for performing high-speed photography on the action process of the self-starting test outlet pneumatic revolving door of the shock tunnel air inlet channel by using the device, and a throttling method for performing the self-starting test of the shock tunnel air inlet channel. The device comprises a door plate positioned at the end part of the outlet of the air inlet channel, the door plate is rotatably connected with a rotating shaft through a shaft sleeve, the rotating shaft is fixed below the outlet end part of the air inlet channel, the lower edge of the door plate is vertically connected with a limiting step, the included angle between the inclined door plate and the end surface of the outlet of the air inlet channel is 3-5 degrees, and after the flow field of a wind tunnel is stable, the pneumatic revolving door rotates around the rotating shaft under the pushing of air flow and is opened to start the air inlet channel; and the method can conveniently carry out effective automatic throttling control on the self-starting test of the shock tunnel air inlet channel, and provides reliable test basis for mastering the flow control rule of the air inlet channel and the design of the hypersonic speed air inlet channel.
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Description

technical field

[0001] The invention belongs to the technical field of experimental aerodynamics, and relates to a pneumatic revolving door device for the self-starting test outlet of the inlet of a shock tunnel, and uses the device to perform the action of the pneumatic revolving door for the self-starting test outlet of the inlet of the shock tunnel The method of high-speed photography, the throttling method of the self-starting test of the shock tunnel inlet. Background technique

[0002] The intake port is the first aerodynamic component of the scramjet engine, and its performance will directly affect the working characteristics of the power system. The self-starting and stable operation of the intake port is the prerequisite for the normal operation of the power system. If the intake port does not start, the combustion chamber will not work normally, and the power system will not be able to generate the power it should. Therefore, the self-starting performance is one o...

Claims

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