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Numerical test method for indoor air pollutant propagation law in student dormitory

A technology of indoor air and testing methods, applied in the field of pollutant transmission research, can solve large-scale infection and other problems, and achieve the effect of reducing numerical dispersion

Inactive Publication Date: 2019-06-25
LIAONING TECHNICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0002] The school is a densely populated area. Once the school produces influenza virus or other infectious viruses, it is easy to cause large-scale infection. Therefore, it is of great significance to study the law of air pollutant transmission in the school. Student dormitories are places where pollutants are easily produced. Many Viruses that cause infectious diseases are all produced in student dormitories, and there is no research on numerical testing methods for the transmission of indoor air pollutants in student dormitories in the prior art

Method used

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Embodiment Construction

[0011] The technical solution of the present invention will be further described in detail below.

[0012] A method for numerically testing the propagation law of air pollutants in a student dormitory room is characterized in that it includes the following steps:

[0013] Step 1: Determine the sixth-order matrix coefficients according to the problem to be obtained:

[0014] Step 2: Solve the first-order velocity-stress equation;

[0015] Step 3: Obtain the convolution differential operator in step 2;

[0016] Step 4: Find the coefficient of the window function, and perform windowing and truncation on the convolution differential operator;

[0017] Step 5: According to the fluid environment, the model parameters, pollutant parameters, and transmission frequency are given, and the model is discretized;

[0018] Specifically, the anisotropy parameter of the propagation medium is expressed as a sixth-order matrix form:

[0019] C=C 11 C 12 C 13000 C 21 C 22 C 23000 C 13...

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Abstract

The invention provides a numerical test method for the indoor air pollutant propagation law in a student dormitory. The method comprising the steps that 1 a sixth-order matrix coefficient is determined according to a problem to be acquired; 2 a first-order velocity and stress equation is solved; 3 a convolutional differential operator in the step 2 is acquired; 4 a window function coefficient is acquired, and windowing and truncation are carried out on the convolutional differential operator; and 5 according to fluid environment, model parameters, pollutant parameters and propagation frequencyare given to discretize a model. The method provided by the invention is more conducive to describing the propagation characteristics of pollutants in the air, and can reduce the numerical dispersionphenomenon in the simulation of pollutant diffusion.

Description

technical field [0001] The invention relates to the field of pollutant transmission research, in particular to a numerical test method for the transmission law of air pollutants in a student dormitory room. Background technique [0002] The school is a densely populated area. Once the school produces influenza virus or other infectious viruses, it is easy to cause large-scale infection. Therefore, it is of great significance to study the law of air pollutant transmission in the school. Student dormitories are places where pollutants are easily produced. Many Viruses that cause infectious diseases are all produced in student dormitories. In the prior art, there is no research on numerical testing methods for the transmission of air pollutants in student dormitories. Contents of the invention [0003] The present invention aims at the problems and deficiencies in the above-mentioned prior art, and provides a research on a numerical test method for the transmission law of air...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 贾进章郭晓天
Owner LIAONING TECHNICAL UNIVERSITY
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