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Airflow pulse shearing type single micro-droplet generating device

A technology of airflow pulse and generating device, which is applied in the field of aerospace, can solve the problems of uncontrollable, small distance between water droplet strings, large diameter of water droplets, etc., and achieve the effect of increasing water supply speed, small size and slowing down speed

Active Publication Date: 2020-06-19
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an airflow pulse shear type single droplet generating device, which aims to solve the technical problems in the prior art that the diameter of water droplets is large and uncontrollable, and the spacing of water droplet strings is very small and uncontrollable

Method used

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  • Airflow pulse shearing type single micro-droplet generating device
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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "hor...

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Abstract

The invention is applicable to the technical field of aerospace, and provides an airflow pulse shearing type single droplet generating device which comprises a water supply system, an air supply system, a synchronizer and a droplet generator. One ends of the water supply system and the air supply system are connected to the water drop generator, and the other ends of the water supply system and the air supply system are connected to the synchronizer; the water supply system supplies water to the water drop generator, and the water supply speed is adjustable; the air supply system supplies pulse air flow to the water drop generator, and the frequency generated by the pulse air flow is adjustable. Furthermore, the water supply system comprises a displacement controller, a linear displacementinstrument and a microinjector which are connected in sequence, the displacement controller is connected to the synchronizer, and the microinjector is connected to the water drop generator. Accordingto the airflow pulse shearing type single micro-droplet generating device, adjustment of the diameter of water droplets and adjustment of the distance between the water droplets can be achieved.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to an airflow pulse shear type single droplet generating device. Background technique [0002] Since the American ATR-72 air crash in 1994, Supercooled Large Droplet (hereinafter referred to as SLD) has become a hotspot in the research of aircraft icing. Compared with the conventional water droplets specified in Appendix C of FAR25 (the average effective diameter of water droplets is less than 50μm), SLD is characterized by a larger diameter of water droplets (usually greater than 100μm, or even more than 3mm), and significant dynamics will occur during movement and impact. For example, under the action of strong aerodynamic force, deformation and fragmentation will occur, and phenomena such as spreading, contraction and splashing may occur when hitting a solid wall or a liquid film; at the same time, SLD usually does not freeze immediately after hitting a solid wall,...

Claims

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Application Information

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IPC IPC(8): G01M9/06G01M9/04
CPCG01M9/04G01M9/065
Inventor 刘森云赵献礼王桥郭龙柳庆林陈圆圆
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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