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System and method for testing internal flow field property of dripper maze inner channel

A labyrinth flow channel and testing system technology, which is applied in the field of testing systems for the characteristics of the flow field in the labyrinth flow channel of the dripper, can solve the problem of not being able to measure the flow field in the labyrinth flow channel of the dripper and other problems, and achieve the effect of a harmonious and unified resolution.

Inactive Publication Date: 2008-08-27
CHINA AGRI UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a test system and method for the characteristics of the flow field in the labyrinth channel of the dripper, so as to overcome the problem that the existing technology cannot realize the full-field measurement of the flow field in the labyrinth channel of the dripper

Method used

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  • System and method for testing internal flow field property of dripper maze inner channel
  • System and method for testing internal flow field property of dripper maze inner channel
  • System and method for testing internal flow field property of dripper maze inner channel

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Embodiment Construction

[0047] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] Such as figure 1 As shown, it is a schematic diagram of the testing system of the flow field characteristics in the dripper labyrinth flow channel of the present invention, including a dripper model device 110, which is used to simulate the shape of the labyrinth flow channel of the dripper; In 110, tracer fluorescent particles following the movement of the flow field are distributed; the laser generating device 130 is used to generate a laser light source to excite the tracer fluorescent particles for imaging; the image acquisition device 140 is used for collecting tracer fluorescent particles for imaging; the image processing device 150 , connected with the image acquisition device 140 , to process and analyze the imaging to obtain flow field characteristic parameter distribution; the synchronous control device 160 is used to ...

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Abstract

The invention relates to a test system and a method for the flow field characteristics in a labyrinth flow passage of a dripper. According to the particle image speed measurement principle, the test system for the flow field characteristics is constructed in a dripper plane model through the self-developed tracing fluorescent particles; simultaneously a microscope objective is used to modify a conventional CCD camera to give full play to the characteristics of the CCD camera and the electron microscope, thereby realizing the harmony and unification of a shooting area and the resolution of the digital image. Software is used to splice the test result of each unit of the observed flow mean field, thereby realizing the full-field measurement of the flow field characteristics in the labyrinth flow passage of the dripper.

Description

technical field [0001] The invention relates to a testing technology for flow field characteristics, in particular to a testing system and method for flow field characteristics in a labyrinth flow channel of a dripper. Background technique [0002] Microscale fluid mechanics is a research field between classical macroscopic fluid mechanics and microscopic mechanics, and mainly studies the laws of fluid flow with characteristic scales ranging from millimeters to microns. The labyrinth flow channel at the microscale is widely used because of its boundary tortuousness, which can make the fluid turbulent, thereby reducing the sensitivity of the pressure to the flow rate. The labyrinth channel dripper is a typical example. The measurement of the flow field characteristics in the channel has a great effect on the research of microfluidic characteristics and the design of high anti-clogging drippers. However, due to the narrow flow channel and complicated boundaries of the dripper ...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 李云开杨培岭任树梅徐飞鹏刘洪禄
Owner CHINA AGRI UNIV
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