Solid tracer particle generator and flow field measuring device

A technology for tracking particles and generators, which can be used in measurement devices, fluid velocity measurement, and testing of machine/structural components, etc., and can solve problems such as low flow field measurement accuracy.

Pending Publication Date: 2020-09-11
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a solid tracer particle generator and a flow field generator with high measurement accuracy for the flow field to solv

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  • Solid tracer particle generator and flow field measuring device
  • Solid tracer particle generator and flow field measuring device
  • Solid tracer particle generator and flow field measuring device

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counte...

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Abstract

The invention relates to a solid tracer particle generator. The solid tracer particle generator comprises a connecting flow channel and a combustion frame. A hollow combustion cavity is formed in theconnecting flow channel and can be connected to the experiment flow channel in series, and then experiment fluid in the experiment flow channel is allowed to flow through the combustion cavity. The combustion frame is arranged in the combustion cavity and can bear fuel, and tracer particles generated after the fuel is ignited can be mixed with experimental fluid in the experimental flow channel and move along with the experimental fluid. The invention further relates to a flow field measuring device comprising the solid tracer particle generator. According to the solid tracer particle generator and a flow field measuring device, the whole generation process of the solid tracer particles is completed in the experiment flow channel, fuel can be combusted with air in the experiment flow channel to generate the solid tracer particles in the experiment process, additional gas flow does not need to be added, control over the experiment fluid flow is facilitated, and the fluid following performance of the solid tracer particles is guaranteed.

Description

technical field [0001] The invention relates to the technical field of flow field detection, in particular to a solid tracer particle generator and a flow field measurement device. Background technique [0002] Particle image velocimetry (PIV) is a non-contact laser optical measurement technology, which can be used for the research and measurement of fluid motion processes such as flow, turbulence, spray atomization and combustion, and can be compared without contacting the flow field. Accurate flow rate measurement. The premise of accurate measurement of flow field by particle image velocimetry is the generation of tracer particles. A general tracer particle generator generates tracer particles outside the flow channel, and then uses a pump to add the tracer particles into the flow channel. In the process of pumping the tracer particles into the flow channel, a large gas pressure is generally required, which will seriously affect the fluid flow in the flow channel, making...

Claims

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Application Information

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IPC IPC(8): G01P5/20G01P1/00G01M9/06
CPCG01M9/06G01P1/00G01P5/20
Inventor 任静李雪英赵珂
Owner TSINGHUA UNIV
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