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Method for quickly acquiring information of unstructured gaseous phase grid with solid particles

A technology of solid-phase particles and grid information, applied in electrical digital data processing, special data processing applications, instruments, etc. The effect of enhancing accuracy

Inactive Publication Date: 2011-08-17
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

If the method of data averaging of multiple unstructured gas phase grids is used to solve the problem, the process will inevitably sacrifice a large amount of gas phase field information, thereby reducing the calculation accuracy; The method of calculating the distance between the center points of all unstructured gas phase grids in the area to obtain the current unstructured gas phase grid where the particles are located will bring an extremely huge amount of calculation, thus greatly reducing the calculation speed

Method used

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  • Method for quickly acquiring information of unstructured gaseous phase grid with solid particles
  • Method for quickly acquiring information of unstructured gaseous phase grid with solid particles
  • Method for quickly acquiring information of unstructured gaseous phase grid with solid particles

Examples

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Embodiment 1

[0026] Example 1 The numerical simulation of the gas flow field is usually carried out in two -dimensional or three -dimensional. It is now described in two -dimensional situation. The three -dimensional situation can be pushed according to this:

[0027] (1) For non -structural grids divided by gas computing, first establish a large and small set of structural grids respectively to cover the entire computing area.Among them, the scale of the large structure grid is greater than the non -compliance gas grid scale, and the scale of the small structure grid is less than the non -constructor grid scale, such as figure 1 As well as 2 Show.The non -structural mesh solution area divided by the gas phase calculation is the two sets of structural mesh coverage areas established by large and small squares.The serial number of the non -structural gas grid covered by the large structural grid is registered for statistical registration, and the array is established to prepare for succession; ...

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Abstract

The invention discloses a method for quickly acquiring information of an unstructured gaseous phase grid with solid particles. The method comprises the following steps: (1) establishing a large structured grid and a small structured grid to cover the unstructured gaseous phase grid; (2) scanning the gaseous phase grid, and carrying out statistic registration on the gaseous phase grid covered by each large structured grid; (3) establishing an array for the relationship of the gaseous phase grids when a minimum value is acquired in calculating the distance between the small structured grid and the gaseous phase grid thereof in the large structured grid, namely the gaseous phase grid of the small structure grid; and (4) in subsequent calculation, determining the small structured grid with the particles according to the particle positions, and acquiring the information of the particles in the unstructured gaseous phase grid by utilizing the array established in the step (3). By utilizing the method, while the numeric value simulation accuracy of gaseous phase and solid phase is ensured, and huge calculation amount caused by searching the gaseous phase grid with the particles in the traditional method is eliminated, so that the numeric value calculation efficiency is greatly improved.

Description

Technical field [0001] The present invention is a method of numeric simulation in the mobile computer of Qi solid, and it involves a method that quickly obtains the non -structural gas grid information of the solid phase particles in the quickest two -phase value simulation. Background technique [0002] The flow of gas and solids exists widely in the fields of energy, chemical industry, environmental protection and other fields. With the significant improvement of the computer speed, the numerical simulation technology of the qi and solid -phase flow flow also develops rapidImportant role. [0003] In the numerical simulation of the volume of the gas solid two -phase flow, an effective measure is to separate the gas field field and the solid -phase granular field, and use the Euler method and the Laglangi method for numerical simulation, which can fully improve the calculation of calculationThe accuracy of efficiency and adding numerical simulation.In the process of calculating ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 袁竹林朱立平
Owner SOUTHEAST UNIV
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