加入液体后多尺寸球体填充结构的实验研究

IF 4.6 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-09-26 DOI:10.1016/j.powtec.2025.121684

Yi Zou , Junqi Xu , Yongli Wu , Ruiping Zou , Aibing Yu

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引用次数: 0

摘要

多尺寸湿球的堆积是高度复杂的，由液体的存在引起的粒子间力的相互作用形成。本研究提出了一个全面的和定量的分析微观颗粒安排在一个多尺寸湿球填料。为了实现这一目标，实验获得了一个多尺寸的湿球填料，然后用各种分析技术，根据配位数（CN）、对相关函数（PCF）、Voronoi-Delaunay镶嵌的拓扑和度量性质进行了表征。通过CN和PCF分析，识别和表征了颗粒团块和颗粒链等独特的堆积特征。此外，Voronoi和Delaunay镶嵌技术的应用揭示了在接触和非接触状态下粒子的异质团簇的存在。这些镶嵌方法也揭示了在包装中出现的扭曲孔隙结构。从本研究中获得的见解可能有助于加强创新模拟方法的评估和发展，其中毛细和液体相关力作用于具有尺寸分布的湿颗粒。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Experimental investigation of the packing structure of multi-sized spheres with liquid addition

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Experimental investigation of the packing structure of multi-sized spheres with liquid addition

The packing of multi-sized wet spheres is highly intricate, shaped by the interplay of interparticle forces induced by the presence of liquid. This study presents a comprehensive and quantitative analysis of the microscopic particle arrangement within a multi-sized wet sphere packing. To achieve this, a multi-sized wet sphere packing is obtained experimentally and is then characterized by various analytical techniques, in terms of coordination number (CN), pair correlation function (PCF), topological and metric properties of the Voronoi-Delaunay tessellation. Through CN and PCF analysis, distinctive packing features such as agglomerates and particle chains are identified and characterized. Furthermore, the application of the Voronoi and Delaunay tessellation techniques uncovers the existence of heterogeneous clusters of particles in contact and non-contact states. These tessellation methods also shed light on the distorted pore structure that emerges within the packing. The insights gained from this study may serve to enhance the assessment and development of innovative simulation methods where capillary and liquid-related forces acting on wet particles with a size distribution are considered.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.