Device for analyzing droplet flow

A technology for analyzing liquid and liquid droplets, which is applied in the field of optical experiments, can solve problems such as flow characteristics and judgment of difficult liquid droplets, achieve efficient visualization, and improve the effects of occlusion and flow field chaos

Active Publication Date: 2020-05-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The field that describes the flow characteristics is usually a field that cannot be visualized by the velocity field or the flow trajectory, so it is difficult to judge the flow characteristics of the droplets

Method used

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  • Device for analyzing droplet flow
  • Device for analyzing droplet flow
  • Device for analyzing droplet flow

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Embodiment Construction

[0040] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0041] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0042] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to a device for analyzing flow of liquid drops. The device comprises a fixing assembly used for fixing a test piece, a heating device used for heating the test piece to melt thetest piece to form liquid drops, an airflow generation device used for generating airflow on the surface of the test piece in the heating process and enabling the liquid drops to flow, an image acquisition device used for acquiring an image of the surface of the test piece in the flowing process of the liquid drops, and a processing assembly used for analyzing the flow characteristics of the liquid drops according to the image. According to the device for analyzing the flow of the liquid drops, the flow characteristics of the liquid drops can be analyzed by acquiring the image of the flow of the liquid drops on the surface of the test piece, and the flow field characteristics generated by the flowing of a large amount of the liquid drops on the surface of a material in an ablation experiment can be analyzed, so that the flow field characteristics are more efficiently visualized, and the shielding and flow field disorder phenomena in vector field visualization can be improved.

Description

technical field [0001] The present disclosure relates to the field of optical experiments, in particular to a device for analyzing the flow of liquid droplets. Background technique [0002] In the field of aerospace, the complex service environment of high temperature and high-speed flow field has brought great challenges to the thermal protection of aerospace. Especially during the reentry process of a hypersonic vehicle, when the vehicle reaches a certain speed, the leading edge of the vehicle interacts violently with the air, and the surface temperature of the leading edge rises sharply, causing the structural materials on the surface of the leading edge of the vehicle to melt due to aerodynamic heating, and then Droplets are formed, and a series of evolution processes such as flow, fusion, and separation are produced under the action of airflow. [0003] Carbon / silicon carbide composites are widely used in aerospace thermal protection due to their good mechanical proper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84G01N21/01G01N1/44
CPCG01N1/44G01N21/01G01N21/84G01N2021/0112
Inventor 冯雪张金松岳孟坤唐云龙朱相宇
Owner TSINGHUA UNIV
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