Advanced Powder Technology最新文献_第9页

Experimental investigation of the hydrodynamics of chip-like particles in a flat-base spouted bed 平板喷流床中片状颗粒流体力学的实验研究

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-07 DOI: 10.1016/j.apt.2025.105080

Zhan Luo, Xinxin Tang, Zhouzun Xie, Yansong Shen

{"title":"Experimental investigation of the hydrodynamics of chip-like particles in a flat-base spouted bed","authors":"Zhan Luo, Xinxin Tang, Zhouzun Xie, Yansong Shen","doi":"10.1016/j.apt.2025.105080","DOIUrl":"10.1016/j.apt.2025.105080","url":null,"abstract":"<div><div>Despite the broad applications in the chemical engineering fields, the spouting behavior of chip-like particles in the spouted beds is still limited from the experimental scope. In the current study, the minimum spouting velocity, spout instability including spout incoherence and spout deflection, and particle mixing are investigated based on the Particle Image Velocimetry (PIV) measurement. Two kinds of particles (chip-like and spherical) are adopted in this work and the effect of spouting gas velocity and static bed height on the spouting behavior is discussed. The spout incoherence and spout deflection are post-processed with two simple quantitative methods, respectively. The results show that the minimum spouting velocity both for spherical and chip-like particles increases with the increase of the static bed height. The particle velocity distribution (x- or y-direction) is affected significantly by the particle shape, gas spouting velocity and static bed height. For spout incoherence, the blockage height almost linearly increases in a period for both spherical and chip-like particles under different case settings. Finally, three main mixing zones are classified in the dense bottom region, spouting mixing zone, downward movement mixing zone and unmixing/dead zones. The current work is beneficial to the further investigation of chip-like particles in the spouted beds.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105080"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145463956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly accurate prediction of mini-hydrocyclone separation efficiency by coupling back propagation neural network and response surface method 基于反向传播神经网络和响应面耦合的小型水力旋流器分离效率高精度预测

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-08 DOI: 10.1016/j.apt.2025.105100

Yahong Wang , Lixin Zhao , Lin Liu , Dianyu E , Kaiwen Yang , Shuang Zhang , Muze Wang

{"title":"Highly accurate prediction of mini-hydrocyclone separation efficiency by coupling back propagation neural network and response surface method","authors":"Yahong Wang , Lixin Zhao , Lin Liu , Dianyu E , Kaiwen Yang , Shuang Zhang , Muze Wang","doi":"10.1016/j.apt.2025.105100","DOIUrl":"10.1016/j.apt.2025.105100","url":null,"abstract":"<div><div>Mini-hydrocyclones (MHCs) are widely used for efficient fine particle separation. However, their separation efficiency can fluctuate significantly with changes in their geometry, operating conditions, or the separated medium. Current evaluation methods rely heavily on numerical simulations and experiments, which increases complexity and costs, limiting their practical use. This study developed a back-propagation neural network (BPNN) model integrating MHC geometrical parameters, operational parameters, and media physical properties to predict separation efficiency. Combined with response surface methodology (RSM), the optimal BPNN configuration was determined: 13 and 11 neurons in the first and second hidden layers, respectively, with a learning rate of 5.27E-3. The number of neurons in the first hidden layer was found to have the most significant effect on the model accuracy, followed by the learning rate. The optimized model’s mean square errors (MSEs) on the training and testing datasets are only 7.11E-4 and 8.98E-4, which are significantly lower than those in the original BPNN model. And the model was validated using new experimental data from other literature, demonstrating its high generalization ability to new data. Further, the superiority of the optimized BPNN model was verified by comparing the accuracy of existing prediction models. This study can provide a high-precision prediction method for the multiphase separation of MHCs under different operating conditions, which can help to improve the application efficiency of MHCs.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105100"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145463955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of granule properties for pesticide formulations using pressure transmission of wet kneaded powder 用湿揉粉的压力传递预测农药制剂的颗粒特性

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-21 DOI: 10.1016/j.apt.2025.105127

Momoko Sugimoto, Shuji Ohsaki, Hideya Nakamura, Satoru Watano

{"title":"Prediction of granule properties for pesticide formulations using pressure transmission of wet kneaded powder","authors":"Momoko Sugimoto, Shuji Ohsaki, Hideya Nakamura, Satoru Watano","doi":"10.1016/j.apt.2025.105127","DOIUrl":"10.1016/j.apt.2025.105127","url":null,"abstract":"<div><div>In pesticide granule formulation, evaluation of the wet powder after kneading prior to wet granulation is critical to ensure product quality and manufacturing consistency. In this study, a novel method for quantitative evaluation of the wet powder after kneading was proposed based on the pressure transmission ratio obtained from constant-speed compression tests of wet-kneaded powders. Formulations with different water contents, bentonite ratios, and carrier powder types were investigated. The pressure transmission ratio between the pressures of the upper and lower punches increased with increasing water content and bentonite ratio, reflecting the improved dispersion of the binding liquid. In addition, a strong negative correlation was observed between the pressure transmission ratio and granule friability, indicating improved granule strength with efficient pressure transmission. The pressure transmission ratio also influenced the granule yield, with excessive values leading to oversized granules. An optimal range for the pressure transmission ratio (0.64–0.67) was identified to produce granules with sufficient strength and suitable size distribution for pesticide application. This approach requires only a small amount of the powder sample and enables rapid evaluation, providing a practical tool for predicting granule quality before extrusion. Thus, the proposed method can facilitate formulation design and process optimization in agrochemical manufacturing.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105127"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In depth exploration of the microbial dust suppression mechanism: from the perspective of CaCO3 characteristics 微生物抑尘机理的深入探讨：从CaCO3特性的角度

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-11 DOI: 10.1016/j.apt.2025.105101

Yue Feng , Mei-Xuan Ha , Xiang-Ming Hu , Pan-Pan Qiu , Yan-Yun Zhao , Li Chen , Yan-Lin Qu , Tong Li , Hui Rong , Xiao-Niu Yu

{"title":"In depth exploration of the microbial dust suppression mechanism: from the perspective of CaCO3 characteristics","authors":"Yue Feng , Mei-Xuan Ha , Xiang-Ming Hu , Pan-Pan Qiu , Yan-Yun Zhao , Li Chen , Yan-Lin Qu , Tong Li , Hui Rong , Xiao-Niu Yu","doi":"10.1016/j.apt.2025.105101","DOIUrl":"10.1016/j.apt.2025.105101","url":null,"abstract":"<div><div>Microbial dust suppressants, an eco-friendly dust control method, have been widely studied for improving suppression efficiency. This study focused on CaCO<sub>3</sub> precipitation characteristics (production, crystal form, particle size, and morphology) and investigated the relationship with dust suppression performance and elucidated the underlying mechanism. Results found that changes in these characteristics affect the erosion resistance of the consolidated layer. And, high production, calcite form, small particle size, and rod-shaped morphology enhanced consolidation strength. Furthermore, production showed the strongest correlation with erosion resistance (p = 0.008, p < 0.001), followed by crystal form (p < 0.001, p = 0.01) and morphology (p = 0.016, p = 0.008), while particle size had the weakest correlation (p = 0.037, p = 0.025). Meanwhile, the discrete element method (DEM) was used to simulate the interaction between different types of CaCO<sub>3</sub> and coal. Research found that high-production, calcite type, small particle size, and rod-shaped CaCO<sub>3</sub> improved the consolidation effect by generating more contact bonds with coal powder particles, providing stronger mechanical properties, entering deeper pores, and connecting more coal powder particles. This work identified key CaCO<sub>3</sub> related factors influencing microbial dust suppression, offering clear guidance for optimizing microbial agents.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105101"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship between slurry dispersion and sheet structure in multi-component systems: a case study of cathodes for all-solid-state batteries 多组分系统中浆液分散与薄片结构的关系：以全固态电池阴极为例

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-19 DOI: 10.1016/j.apt.2025.105112

Kenta Kitamura , Miu Asakura , Gaku Tsutsui , Takamasa Mori

{"title":"Relationship between slurry dispersion and sheet structure in multi-component systems: a case study of cathodes for all-solid-state batteries","authors":"Kenta Kitamura , Miu Asakura , Gaku Tsutsui , Takamasa Mori","doi":"10.1016/j.apt.2025.105112","DOIUrl":"10.1016/j.apt.2025.105112","url":null,"abstract":"<div><div>Uniform dispersion in multi-component slurries is crucial for powder-based sheet fabrication but remains challenging, particularly in high-concentration systems. Existing evaluation methods may fail to adequately capture complex dispersion behaviors, limiting the design of stable, high-performance materials. This study investigated the relationship among particle dispersion, rheological properties, and the structural and electrical characteristics of cathode sheets for all-solid-state batteries, using particle concentration as a controlled variable. Slurries containing LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub>, Li<sub>6</sub>.<sub>25</sub>La<sub>3</sub>Zr<sub>2</sub>Al<sub>0.25</sub>O<sub>12</sub>, and acetylene black were prepared at concentrations of 30 to 45 vol%. Between 30 and 40 vol%, improved dispersion decreased the slurry’s relative viscosity ratio and increased the sheet packing fraction, resulting in lower sheet volume resistivity. However, at 45 vol%, the slurry exhibited the highest relative viscosity ratio—ordinarily interpreted as strong aggregation—and the highest sheet packing fraction, due to rapid network formation following effective dispersion. However, the sheet volume resistivity increased markedly, likely owing to excessive solid electrolyte dispersion disrupting the conductive network. These findings provide new insights and demonstrate that complementary methods are essential for accurately evaluating dispersion states in multi-component slurries. This knowledge can enhance the performance of sheet-formed bodies and optimize process control in multi-component slurry systems, such as those used in all-solid-state batteries.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105112"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early hydration reaction of nano-alumina-modified cement dominated by liquid phase, heat release and microstructure development 纳米氧化铝改性水泥的早期水化反应以液相、放热和微观结构发育为主

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-24 DOI: 10.1016/j.apt.2025.105118

Ying Liu , Quanle Zou , Yunpei Liang , Chaojun Fan , He Li

{"title":"Early hydration reaction of nano-alumina-modified cement dominated by liquid phase, heat release and microstructure development","authors":"Ying Liu , Quanle Zou , Yunpei Liang , Chaojun Fan , He Li","doi":"10.1016/j.apt.2025.105118","DOIUrl":"10.1016/j.apt.2025.105118","url":null,"abstract":"<div><div>The early hydration of cement governs its microstructure development and engineering properties, where nano-alumina (NA) has emerged as a potent accelerator. This study systematically investigates the multi-scale effects of NA mass fraction on hydration kinetics by integrating liquid-phase evolution, heat release, and microstructural transformations. Modified cement pastes with varying NA mass fractio contents were analyzed using nuclear magnetic resonance, isothermal calorimetry, scanning electron microscopy, and ionic mobility measurements. Results demonstrate that NA accelerates capillary-to-gel water conversion by 4 h through enhanced nucleation, reducing gel water retention time while refining pore architecture. The heat release profiles reveal NA’s dual action: intensifying initial dissolution peaks and advancing acceleration stage onset through lowered C-S-H nucleation barriers. Microstructural evolution shows dose-dependent morphological shifts, where NA transforms C-S-H into interconnected networks and directs needle-like calcium aluminate growth at interfaces. Ionic dynamics confirm NA’s catalytic role, inducing earlier Ca<sup>2</sup><sup>+</sup> saturation and accelerating AFt to AFm conversion within 16 h via Al<sup>3</sup><sup>+</sup> consumption. These findings elucidate NA’s synergistic mechanisms in accelerating cement hydration, offering critical insights for high-performance composites.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105118"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145615133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of meso/micro multiple scale turbulent shear mixing on the synthesis process of micro/nano oxide particles in continuous multistage Rankine vortex flow 中/微多尺度湍流剪切混合对连续多级朗肯涡流中微/纳米氧化物颗粒合成过程的影响

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.apt.2025.105094

Yanqing Guo , Jiaying Lu , Luming Chen , Jie Yang , Xiaogang Yang , Yihang Xin

{"title":"Effect of meso/micro multiple scale turbulent shear mixing on the synthesis process of micro/nano oxide particles in continuous multistage Rankine vortex flow","authors":"Yanqing Guo , Jiaying Lu , Luming Chen , Jie Yang , Xiaogang Yang , Yihang Xin","doi":"10.1016/j.apt.2025.105094","DOIUrl":"10.1016/j.apt.2025.105094","url":null,"abstract":"<div><div>An Eulerian Computational Fluid Dynamics modelling coupled with the use of Lagrangian Discrete Phase Model (CFD/DPM) was employed to investigate the effect of meso/micro multiple-scale turbulent mixing on the synthesis process of micro/nano oxide particles in a continuous multistage Rankine vortex flow. The changes from micro- to macro-scale interactions among different scales, including the coupling of particle entrainment by turbulent eddies and synthesis reaction in the Rankine vortex flow and the mesoscale structure (i.e., particle aggregates and reactor scales) were systematically studied, especially focusing on the influence of meso/micro scale turbulent eddies on the synthesized micro/nano particles. It has been demonstrated that the use of Eulerian-Lagrangian framework (CFD/DPM) can effectively capture the simultaneous interactions between aggregated particles and turbulent eddies, enabling the evaluation of how operational variations, specifically in the eddy size based Reynolds number and reactant concentration, to affect the final particle properties. Numerical results for a range of these conditions have shown a strong agreement with the experimental data. The present study has demonstrated that the multistage Rankine vortex flow can effectively intensify the local turbulence induced shear at meso/micro scales, thereby controlling nanoparticle aggregation and breakage to facilitate the production of uniform, <em>meso</em>-sized particles with well-defined morphology.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105094"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145463942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modulating the low-temperature NH3-SCR activity of bimetallic MOF-derived MnCeOx/C catalyst via the molar ratio of manganese and cerium 锰铈摩尔比对mof衍生MnCeOx/C催化剂低温NH3-SCR活性的调节

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-11 DOI: 10.1016/j.apt.2025.105102

Ruichao Yang , Zhifang Li , Jinxing Cui , Yuanyuan Ma , Changlong Yang

{"title":"Modulating the low-temperature NH3-SCR activity of bimetallic MOF-derived MnCeOx/C catalyst via the molar ratio of manganese and cerium","authors":"Ruichao Yang , Zhifang Li , Jinxing Cui , Yuanyuan Ma , Changlong Yang","doi":"10.1016/j.apt.2025.105102","DOIUrl":"10.1016/j.apt.2025.105102","url":null,"abstract":"<div><div>The elimination of nitrogen oxides has become a focal point in the field of the control of air pollution. A series of MnCeO<sub>x</sub>/C catalysts are synthesized using in-situ pyrolysis under N<sub>2</sub> atmosphere using bimetallic Mn/Ce-MOF as the precursor. The effects of different Mn/Ce molar ratios on the structure, physicochemical properties and NH<sub>3</sub>-SCR performance are investigated. The results show that the Mn3Ce1O<sub>x</sub>/C catalyst displays excellent low-temperature activity (NO<sub>x</sub> conversion is more than 90 %) at 175–275 ℃. This is attributed to the large specific surface area of the Mn3Ce1O<sub>x</sub>/C, while the addition of Ce promotes the formation of oxygen vacancies through the Mn<sup>3+</sup>+Ce<sup>4+</sup>↔ Ce<sup>3+</sup> + Mn<sup>4+</sup> redox cycle, which further facilitates the oxidation of NO to NO<sub>2</sub>, resulting in the formation of a “fast SCR” reaction. Meanwhile, the Mn3Ce1O<sub>x</sub>/C catalyst has prominent tolerance to H<sub>2</sub>O and SO<sub>2</sub>, which is attributed to the sacrificial site Ce to protect the active component Mn as well as the hydrophobicity of the MOF-derived carbon material. This work provides a novel approach for designing high-performance low-temperature SCR catalysts.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105102"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145517791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermochemical heat storage performance of MgO/Mg(OH)2 particles in a fluidized bed 流化床中MgO/Mg(OH)2颗粒的热化学储热性能

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-21 DOI: 10.1016/j.apt.2025.105125

Naoya Shirota , Masahiro I. Aoki , Takuto Aoki , Chihiro Fushimi

{"title":"Thermochemical heat storage performance of MgO/Mg(OH)2 particles in a fluidized bed","authors":"Naoya Shirota , Masahiro I. Aoki , Takuto Aoki , Chihiro Fushimi","doi":"10.1016/j.apt.2025.105125","DOIUrl":"10.1016/j.apt.2025.105125","url":null,"abstract":"<div><div>For rapid heat discharge of a thermochemical energy storage system, we investigated the temperature profiles of MgO/Mg(OH)<sub>2</sub> during hydration in a fluidized bed by varying the steam partial pressure (50‒90 vol%), inlet gas temperature (110‒150 °C), fluidization number (2‒4 times of minimum fluidization velocity), and particle diameter (90‒180, 250‒350, and 350‒500 μm). The heat discharge temperature of MgO increased with increasing steam partial pressure and decreasing fluidizing gas velocity. The bed temperature rapidly increased within 1 min of steam supply owing to exothermic hydration. The bed temperature rapidly decreased, stabilized for several minutes, and then progressively decreased. The optimal conditions for high-efficiency heat-discharge storage were determined to be (1) an inlet gas temperature of 110 °C, (2) a fluidization number of 2, and (3) particle sizes of 350‒500 or 250‒350 μm (Geldart Group B particles) under these experimental conditions. For the same fluidization number, the particle size did not have a significant effect on the heat discharge performance unless the particles were elutriated from the reactor. The heat storage and discharge cycles (<em>i</em> = 10) decreased the particle size from 460 to 280 µm, the maximum temperature of the fluidized bed from 168 to 145 °C, and the conversion of MgO during hydration from 71 to 60 mol%.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105125"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multi-superquadric DEM method for high-fidelity modelling mixing and breakage of non-spherical particles in rotary drums 一种高保真模拟转鼓中非球形颗粒混合与破碎的多次超二次DEM方法

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-12-01 Epub Date: 2025-11-19 DOI: 10.1016/j.apt.2025.105076

Zhan Luo, Shuai Wang, Yansong Shen

{"title":"A multi-superquadric DEM method for high-fidelity modelling mixing and breakage of non-spherical particles in rotary drums","authors":"Zhan Luo, Shuai Wang, Yansong Shen","doi":"10.1016/j.apt.2025.105076","DOIUrl":"10.1016/j.apt.2025.105076","url":null,"abstract":"<div><div>Non-spherical particles are widely encountered in engineering applications, yet their irregular shapes pose challenges for accurate modelling in the discrete element method (DEM) framework. This study develops a novel multi-superquadric particle model that incorporates both combination and separation operations for sub-particles, enabling the simulation of non-spherical particle breakage under specific trigger conditions. For the first time, the coexistence of intact multi-superquadric particles and their sub-particles post-separation is implemented within a unified computational domain while maintaining continuous motion integration. The combination sub-model is validated against experimental data and applied to investigate the effects of rotational speed on particle mixing in a horizontal drum. Additionally, the breakage sub-model is applied to investigate the particle breakage behaviors, according to the experimentally determined force-based binary (yes/no) decision criterion. The results show that rotational speed significantly influences the velocity distribution of multi-superquadric particles. A twofold increase in rotational speed (from 25 rpm to 50 rpm) reduces the mixing time by approximately 50 % and increases the transient breakage rate by 1.75 times. This study provides a robust modelling framework for analyzing complex non-spherical particle systems, offering new insights into particle breakage mechanisms and their impact on granular flows in industrial processes.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 12","pages":"Article 105076"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145569040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0