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Airflow energy mixing measuring system

A measurement system and airflow energy technology, which is applied in the field of airflow energy mixing measurement system, can solve the problems of reduced efficiency, troublesome installation and disassembly of models and test devices, and long overall length, so as to reduce measurement error sources, compact overall structure, Obvious effect of size advantage

Active Publication Date: 2021-06-29
AVIC SHENYANG AERODYNAMICS RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the overall length of the air inlet test device is too long caused by the gas flow test and adjustment device in the wind tunnel air inlet test in the prior art, which brings troubles in the installation and disassembly of the model and the test device and reduces the efficiency

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] A measurement system for airflow energy mixing, the measurement system includes an inlet section 1, a throttle section 3, a throttle cone 2 is arranged in the throttle section 3, the measurement system also includes a mixing section 13, and the mixing The section 13 is connected with the throttling section 3; the inside of the mixing section 13 is provided with a protective cover 6, and a cavity is formed between the outer wall of the protective cover 6 and the inner wall of the mixing section 13; the front part of the mixing section 13 is provided with an air supply pipeline 7 . Injection nozzle 8 ; the air supply pipeline 7 communicates with the injection nozzle 8 in the plenum chamber, and provides high-pressure airflow for the injection nozzle 8 .

[0027] The ejection nozzle 8 is arranged at the front of the protective cover 6, and ...

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Abstract

The invention relates to the field of wind tunnel tests, and discloses an airflow energy mixing measuring system which comprises an inlet section, a throttling section and a mixing section, a throttling cone is arranged in the throttling section, and the mixing section is connected with the throttling section. A protective cover is arranged in the mixing section, and a cavity is formed between the outer wall of the protective cover and the inner wall of the mixing section; an air supply pipeline and an injection nozzle are arranged at the front part of the mixing section; the air supply pipeline is communicated with the injection nozzle and provides high-pressure air flow for the injection nozzle. The problems that in a wind tunnel air inlet channel test in the prior art, due to a gas flow testing and adjusting device, the overall length of an air inlet channel test device is too long, a model and a test device are troublesome to mount and dismount, and efficiency is reduced are effectively solved. According to the system, the effects of flow simulation, adjustment and measurement can be integrally achieved.

Description

technical field [0001] The invention belongs to the field of wind tunnel tests, and more particularly relates to a measurement system for airflow energy mixing. Background technique [0002] The air intake is one of the important parts of the air-breathing aircraft power plant. In order to study and evaluate the aerodynamic performance of the inlets of these aircraft designs in wind tunnel tests, it is usually necessary to simulate the flow conditions of the aircraft inlet pipes in the wind tunnel, and measure the angle of attack, Side slip angle aerodynamic performance. [0003] The air flow rate is the most basic aerodynamic parameter measured by the air inlet test, which needs to be accurately simulated, adjusted and measured by the air inlet test system of the wind tunnel. At present, the common method of measuring flow in the inlet test technology of high-speed and low-speed wind tunnels is to use the measurement section at the outlet of the model or a special flow ad...

Claims

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Application Information

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IPC IPC(8): G01M9/02G01M9/04G01M9/06G01M9/08
CPCG01M9/02G01M9/04G01M9/06G01M9/08
Inventor 马晓光刘帅陈通崔晓春
Owner AVIC SHENYANG AERODYNAMICS RES INST
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