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A method for generating microstructure model of porous media based on random fractal

A technology for porous media and model generation, applied in the generation of 2D images, texture/color, instruments, etc., can solve the problems of complex algorithms, poor randomness, and low ideal degree of image formation, and achieve good simulation effects and good random effects Effect

Active Publication Date: 2022-02-11
SUN YAT SEN UNIV
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Problems solved by technology

However, these methods are limited by the fixed pore model, poor randomness, and the algorithm is too complicated, the ideal degree of mapping is low, and the effective fidelity and high degree of agreement between the model and the entity cannot be achieved.

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  • A method for generating microstructure model of porous media based on random fractal
  • A method for generating microstructure model of porous media based on random fractal
  • A method for generating microstructure model of porous media based on random fractal

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The mesostructure of porous media is simulated by programming language, which mainly includes: random simulation of pore boundary based on Linton-Ell system; generation of pore model based on random iterative process of fractal geometry; traversing the solid phase region and establishing a global coordinate matrix, introducing random distribution probability The elements are assembled with the coordinate matrix, and the corresponding relationship between the assembly matrix and the pore generation element model, the size and the number of pore iterations is established, and the pore structure is generated inside the non-growth phase; the single pixel size of the image is identified, and it is inverted into the porosity to control the entire The model generation process finally generates a porous media mesoscopic model. The specific implementation steps are as fol...

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Abstract

The invention provides a method for generating a mesoscopic structure model of a porous medium based on random fractals, which can simulate the distribution of the mesoscopic structure inside the porous medium. The pore generation is simulated by programming language, and the pore model can be standardized. For the complex and uncertain shapes of the pore boundary in the porous medium, the simulation mode of the Linton-Ile system is used to simulate, and the equivalent transformation of the string sequence is carried out. The string sequence is converted into boundary evolution rules as the basis for boundary generation. At the same time, based on the iterative method of fractal geometry, combined with the random distribution probability to simulate the generation of pore structure, a diverse and complex mesostructure model of porous media is obtained. The simulation effect of the invention is good, it can effectively reveal the mesoscopic structure characteristics inside the porous medium, and can be widely used in software model establishment and three-dimensional reconstruction.

Description

technical field [0001] The invention belongs to the field of combined application of digital image and material engineering, and relates to a method for generating a porous medium mesostructure model based on random fractal, which is suitable for simulating the distribution of porous medium mesostructure by programming language and finally generating a model image. Background technique [0002] The characteristics of the internal mesostructure of porous media have an important impact on its macroscopic mechanical properties, such as the permeability and compression resistance of materials, which are closely related to the distribution and arrangement of the internal mesostructure. Therefore, how to more realistically simulate the mesoscopic structure inside porous media and generate image models has become a hot research issue in this field. Through the generation of images, the relationship between the fine and macroscopic structures of porous media can be effectively reveal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00
CPCG06T11/001
Inventor 周翠英梁宁刘镇
Owner SUN YAT SEN UNIV
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