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Tracer gas releasing method and device and tracer system

A technology of tracer gas and delivery method, which is applied in the direction of measuring devices, aerodynamic tests, instruments, etc., and can solve the problems of insufficient information and the inability to fully reflect fluid movement

Active Publication Date: 2021-06-08
SHENYANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional tracer gas injection method, PLIF tracer gas is injected into the wind tunnel flow field through the aircraft model, which can only observe the fluid motion in the boundary layer closest to the model, and cannot fully reflect the fluid motion.
[0004] Therefore, the traditional tracer delivery method has the problem of insufficient information

Method used

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  • Tracer gas releasing method and device and tracer system
  • Tracer gas releasing method and device and tracer system
  • Tracer gas releasing method and device and tracer system

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Embodiment Construction

[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0036] When used herein, the singular forms "a", "an" and "the / the" may also include the plural forms unl...

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Abstract

The invention relates to a tracer gas releasing method and device and a tracer system, and the tracer gas releasing method comprises the steps: a PLIF tracer agent is treated by using tracer gas generation equipment to form tracer gas; the tracer gas is guided into a wind tunnel through the releasing equipment; a plurality of air outlet holes are formed in the leeside of the releasing equipment; and a controller obtains the main fluid flow velocity of the wind tunnel and the image display result of the tracer gas introduced into the wind tunnel, and adjusts the release speed of the tracer gas according to the main fluid flow velocity of the wind tunnel and the image display result of the tracer gas. According to the tracer agent releasing method, PLIF tracer agent steam is used, and wind tunnel flow field visualization can be achieved; a plurality of air outlet holes are formed in the leeside, so that a plurality of tracing lines can be formed, the visual range is expanded, and more flow field information is obtained; and according to the main fluid flow velocity of the wind tunnel and the image display result of the PLIF tracer introduced into the wind tunnel, the release speed of the PLIF tracer is adjusted, and the stability of the tracing effect is improved.

Description

technical field [0001] The present application relates to the field of flow field visualization, in particular to a tracer gas delivery method, a delivery device and a tracer system. Background technique [0002] In aerospace engineering, the wind tunnel visualization experiment of a specific aircraft model is the main experimental means to optimize the aerodynamic layout of the aircraft. According to the obtained experimental data, the information such as the change of the flow field structure and the position of the transition is obtained, and then the rationality of the aerodynamic layout of the model is evaluated. [0003] Traditional low-velocity flow field visualization technology is difficult to visualize unsteady flow due to the poor followability of tracer particles. Since the tracer particles are gas molecules, the planar laser-induced fluorescence (PLIF) technology has excellent followability and can be used to visualize unsteady flow in wind tunnels. However, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06G01M9/04
CPCG01M9/067G01M9/04Y02E30/30
Inventor 常颖韩晓微刘晓
Owner SHENYANG UNIV
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