Flow field numerical simulation measurement method and system for alveolar contraction and expansion process

A technology of numerical simulation and expansion process, applied in the evaluation of respiratory organs, etc., can solve the problems of difficult to clearly describe the characteristics of alveolar flow, long period, low precision, etc., and achieve the effect of shortening the measurement period and reducing the computational burden.

Active Publication Date: 2016-06-08
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

Since the flow characteristic scale of the alveolar area of ​​the human respiratory tract is on the order of less than microns, the gas phase flow in the alveoli needs to consider the gas flow characteristics from a small scale. High volume and low precision, it is difficult to clearly describe the flow characteristics in the alveoli

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  • Flow field numerical simulation measurement method and system for alveolar contraction and expansion process
  • Flow field numerical simulation measurement method and system for alveolar contraction and expansion process
  • Flow field numerical simulation measurement method and system for alveolar contraction and expansion process

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0025] Such as figure 1 Shown, is the flow field numerical simulation measurement method of the alveolar contraction and expansion process of the present invention in an embodiment, including the following steps:

[0026] S11. Establish a geometric model of the alveoli according to the preset geometric parameters of the alveoli, perform grid division on the geometric model of the alveoli, and generate a dynamic mesh model of the alveoli;

[0027] S12. Obtain respiratory parameters and fluid parameters corresponding to the alveoli;

[0028] S13. Simulating the flow field model in the alveoli when the alveoli contract and expand according to the moving mesh model and geometric parameters, breathing parameters and fluid parameters of the alveoli;

[0029] S14. Measure the flo...

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Abstract

The present invention provides a flow field numerical simulation measurement method of alveolar contraction and expansion process, comprising the following steps: establishing a geometric model of the alveoli according to the preset geometric parameters of the alveoli, performing grid division on the geometric model of the alveoli, and generating the The moving mesh model of the alveoli; obtain the respiratory parameters and fluid parameters corresponding to the alveoli; according to the moving mesh model of the alveoli and the geometric parameters, breathing parameters and fluid parameters, simulate the alveoli in the alveoli when the alveoli contract and expand A flow field model; according to the flow field model, the numerical simulation measures the flow field characteristics of the alveoli during contraction and expansion. The invention also provides a corresponding system, which can shorten the measurement cycle, reduce the calculation burden, and accurately describe the characteristics of the flow field in the alveoli.

Description

technical field [0001] The invention relates to the technical field of alveolar simulation detection, in particular to a flow field numerical simulation measurement method of alveolar contraction and expansion process, and a flow field numerical simulation measurement system of alveolar contraction and expansion process. Background technique [0002] The main function of human respiration is to provide oxygen to various tissues of the body and remove carbon dioxide waste gas. The respiration process of the human body can be divided into two stages: the gas is delivered from the external environment to the blood; the gas enters various tissues through the blood. With the continuous progress of society and economy, human beings have continuously improved the quality requirements of the living environment, and their awareness of the protection of the living environment has gradually increased. Particulate pollution caused by industrial production and environmental degradation h...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/08
Inventor 李德波徐齐胜刘亚明
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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