农机化研究2025，Vol.47Issue(6)：26-34,9.DOI:10.13427/j.issn.1003-188X.2025.06.004
改进四参数随机生成法重构植物纤维地膜结构
Reconstructing the Struture of Plant Fiber Much Film Based on an Improved Quartet Structure Generation Set Algorithm
摘要
Abstract
The microstructure model of porous media reconstructed by the Quartet structure generation set algorithm(QSGS)has been widely used in the study of heat transfer at the pore scale of porous media.However,the algorithm suf-fers from the problem of structural dissimilarity when reconstructing the porous media of biodegradable agricultural mulch film profiles,resulting in the actual pore structure characteristics not being truly reflected.In this study,scanning electron microscopy(SEM)images of plant fiber mulch film samples were obtained and,after processing with a binarization method,were used for qualitative comparison analysis with the improved QSGS model to evaluate the accuracy of the im-proved algorithm.This study used the three metrics of fractal dimension,autocorrelation function,and linear path function as evaluation criteria.The results showed that the fractal dimension D of the pore structure of the plant fiber mulch film profile ranged from 1.926 1 to 2.053 7,and the fractal dimension D of the pore structure of the improved QSGS model ranged from 1.827 4 to 2.013 6.The autocorrelation distance r of the pore structure in the plant fiber mulch film profile was 25 pixels,while in contrast,that of the improved QSGS model was 29 pixels.The linear path L of the pore structure of the plant fiber mulch film profile tended towards 0 at a distance of r=26 pixels,and the linear path L of the pore struc-ture of the improved QSGS model tended towards 0 at a distance of r=31 pixels.The improved QSGS algorithm could more accurately construct the real geometry,distribution,and connectivity properties of plant fiber mulch film pores.The results revealed that the improved QSGS algorithm can generate the microstructure of plant fiber mulch film pores more reasonably,and also provide new ideas for reconstructing complex types of porous media.关键词
植物纤维地膜/四参数随机生长算法/重构/多孔介质Key words
plant fiber mulch film/quartet structure generation set algoirthm/reconstruction/porous media分类
农业科学引用本文复制引用
李睿,王子浩,唐志伟,王素素,韩永俊,陈海涛..改进四参数随机生成法重构植物纤维地膜结构[J].农机化研究,2025,47(6):26-34,9.基金项目
黑龙江省重点研发计划指导类项目(GZ20210177,GZ20210160) （GZ20210177,GZ20210160）
黑龙江省博士后科学基金面上项目(LBH-Z19040) （LBH-Z19040）
东农学者计划"学术骨干"项目(2016) （2016）
