Pub Date : 2026-01-01Epub Date: 2025-12-09DOI: 10.1016/j.apt.2025.105145
Amit Paswan , Jitraj Saha , Stefan Heinrich
The modeling of aggregation and collisional breakage phenomena remains largely unexplored due to nonlinearity and nonlocal nature of the model equation. This article discusses the performance and efficiency of a redefined homotopy-based method and generalized iteration method for solving bivariate aggregation-collision breakage model for several kinetic kernels. Solution for Brownian motion kernel and equi-partition of kinetic energy kernel are obtained to analyze the dynamics of bubble columns as well as the granular flow behavior. The iterative scheme is further extended to solve aggregation-breakage model with simultaneous growth and source terms. This model is also extended for solving bivariate cases.
{"title":"An improved meshfree approach for solving nonlinear multivariate models involving aggregation, breakage, growth and source","authors":"Amit Paswan , Jitraj Saha , Stefan Heinrich","doi":"10.1016/j.apt.2025.105145","DOIUrl":"10.1016/j.apt.2025.105145","url":null,"abstract":"<div><div>The modeling of aggregation and collisional breakage phenomena remains largely unexplored due to nonlinearity and nonlocal nature of the model equation. This article discusses the performance and efficiency of a redefined homotopy-based method and generalized iteration method for solving bivariate aggregation-collision breakage model for several kinetic kernels. Solution for Brownian motion kernel and equi-partition of kinetic energy kernel are obtained to analyze the dynamics of bubble columns as well as the granular flow behavior. The iterative scheme is further extended to solve aggregation-breakage model with simultaneous growth and source terms. This model is also extended for solving bivariate cases.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105145"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145733695","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}
Pub Date : 2026-01-01Epub Date: 2025-12-24DOI: 10.1016/j.apt.2025.105157
Yu-liang Yan , Bang-long Xie , Peng-yuan Zhao , Yong-chao Liu , Bi-sheng Xu
The bearing capacity of static drill-rooted nodular piles (SDRN) can be significantly affected by the load transfer and failure modes at the nodular pile-cemented soil interface. This study conducted a series of three-dimensional nodular pile-cemented soil interface shear tests, and the corresponding numerical models were established using the continuum-discrete coupling method. The evolution of the shear behavior of the nodular pile-cemented soil interface was analyzed, and the effects of nodular pile node angle and width on the interface shear characteristics were investigated. The results indicate that the increase of the node angle not only reduces the interface bonding force, but also weakens the interlocking effect between the node and cemented soil. Increasing the node width within a certain range can significantly improve the interface shear resistance and deformation coordination by enhancing the mechanical interlocking effect and optimizing the stress transfer path. However, excessive increase of node width leads to intensified stress concentration within the cemented soil, resulting in a decrease in peak shear resistance. Finally, a nonlinear mechanical behavior model is proposed for the nodular pile-cemented soil interface. This study provides technical guidance for the design and application of SDRN piles in engineering.
{"title":"DEM study of the shear behavior at the nodular pile-cemented soil interface in static drill-rooted nodular pile","authors":"Yu-liang Yan , Bang-long Xie , Peng-yuan Zhao , Yong-chao Liu , Bi-sheng Xu","doi":"10.1016/j.apt.2025.105157","DOIUrl":"10.1016/j.apt.2025.105157","url":null,"abstract":"<div><div>The bearing capacity of static drill-rooted nodular piles (SDRN) can be significantly affected by the load transfer and failure modes at the nodular pile-cemented soil interface. This study conducted a series of three-dimensional nodular pile-cemented soil interface shear tests, and the corresponding numerical models were established using the continuum-discrete coupling method. The evolution of the shear behavior of the nodular pile-cemented soil interface was analyzed, and the effects of nodular pile node angle and width on the interface shear characteristics were investigated. The results indicate that the increase of the node angle not only reduces the interface bonding force, but also weakens the interlocking effect between the node and cemented soil. Increasing the node width within a certain range can significantly improve the interface shear resistance and deformation coordination by enhancing the mechanical interlocking effect and optimizing the stress transfer path. However, excessive increase of node width leads to intensified stress concentration within the cemented soil, resulting in a decrease in peak shear resistance. Finally, a nonlinear mechanical behavior model is proposed for the nodular pile-cemented soil interface. This study provides technical guidance for the design and application of SDRN piles in engineering.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105157"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836928","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}
Particle blockage is a persistent issue during the discharge of coal bunkers. To achieve stable and rapid discharge, an eccentrically bent hopper is proposed, and this structure combines the advantages of both curved and eccentric hoppers. This paper employs Discrete Element Method (DEM) to investigate the discharge characteristics of eccentrically bent hoppers with semi-vertex angles ranging from 15° to 75°. The results show that when the semi-vertex angle exceeds 45°, the average mass flow rate of pulverized coal does not change significantly with semi-vertex angle, and the velocity distribution of coal particles during discharge exhibits an asymmetric pattern. In contrast, when the semi-vertex angle is less than 45°, the average mass flow rate increases obviously as the semi-vertex angle decreases, and the asymmetry of velocity distribution during discharge is reduced. Furthermore, the stability of coal particle discharge with respect to the semi-vertex angle is analyzed using the coefficient of variation (Cv) over both the stable discharge period and the entire discharge process. When semi-vertex angle is greater than 45°, the discharge stability of pulverized coal is relatively poor. As semi-vertex angle is less than 45°, the Cv remains at a stable value, indicating smooth and stable discharge of pulverized coal.
{"title":"Study on flow characteristics of pulverized coal in eccentrically bent coal hopper","authors":"Yanni Jiang , Tengfei Ma , Yong Wu , Zhihui Zheng , Xiaoming Zhou","doi":"10.1016/j.apt.2025.105132","DOIUrl":"10.1016/j.apt.2025.105132","url":null,"abstract":"<div><div>Particle blockage is a persistent issue during the discharge of coal bunkers. To achieve stable and rapid discharge, an eccentrically bent hopper is proposed, and this structure combines the advantages of both curved and eccentric hoppers. This paper employs Discrete Element Method (DEM) to investigate the discharge characteristics of eccentrically bent hoppers with semi-vertex angles ranging from 15° to 75°. The results show that when the semi-vertex angle exceeds 45°, the average mass flow rate of pulverized coal does not change significantly with semi-vertex angle, and the velocity distribution of coal particles during discharge exhibits an asymmetric pattern. In contrast, when the semi-vertex angle is less than 45°, the average mass flow rate increases obviously as the semi-vertex angle decreases, and the asymmetry of velocity distribution during discharge is reduced. Furthermore, the stability of coal particle discharge with respect to the semi-vertex angle is analyzed using the coefficient of variation (<em>C<sub>v</sub></em>) over both the stable discharge period and the entire discharge process. When semi-vertex angle is greater than 45°, the discharge stability of pulverized coal is relatively poor. As semi-vertex angle is less than 45°, the <em>C<sub>v</sub></em> remains at a stable value, indicating smooth and stable discharge of pulverized coal.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105132"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145610554","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}
Pub Date : 2026-01-01Epub Date: 2025-12-23DOI: 10.1016/j.apt.2025.105156
Shuainan Xu , Yang Zhou , Hongya Yu , Haiping Wei , Jinwen Hu , Zhongwu Liu
Aiming at developing Fe-based soft magnetic composites (SMCs) with good high-frequency performance, the aspect ratio of reduced Fe powders was modified by ball-milling. The SMCs were prepared by phosphating treatment and resin binding followed by pressing forming. It is found that a large aspect ratio of the powder can effectively reduce the demagnetizing field and suppress the intra-particle eddy loss in the SMC by forming a lamellar structure. As a result, the effective permeability μe, core loss Ps, and frequency stability of the SMC can be simultaneously improved. The excellent magnetic properties with high μe of 84, low core loss Ps of 552 kW/m3 at 50 mT and 100 kHz, and high-quality factor Q of 62, together with a high frequency stability up to 2.5 MHz, were obtained by using the reduced Fe powders with the aspect ratio of 30:1. Electromagnetic simulation further verified that the increased aspect ratio contributes to the reduced eddy current loss. This work provides a possibility for the application of reduced Fe powder in SMCs for high performance power inductors or other electronic components.
{"title":"Simultaneously improving the permeability, core loss and frequency stability of Fe-based soft magnetic composite by optimizing the aspect ratio of reduced Fe powders","authors":"Shuainan Xu , Yang Zhou , Hongya Yu , Haiping Wei , Jinwen Hu , Zhongwu Liu","doi":"10.1016/j.apt.2025.105156","DOIUrl":"10.1016/j.apt.2025.105156","url":null,"abstract":"<div><div>Aiming at developing Fe-based soft magnetic composites (SMCs) with good high-frequency performance, the aspect ratio of reduced Fe powders was modified by ball-milling. The SMCs were prepared by phosphating treatment and resin binding followed by pressing forming. It is found that a large aspect ratio of the powder can effectively reduce the demagnetizing field and suppress the intra-particle eddy loss in the SMC by forming a lamellar structure. As a result, the effective permeability <em>μ</em><sub>e</sub>, core loss <em>P</em><sub>s</sub>, and frequency stability of the SMC can be simultaneously improved. The excellent magnetic properties with high <em>μ</em><sub>e</sub> of 84, low core loss <em>P</em><sub>s</sub> of 552 kW/m<sup>3</sup> at 50 mT and 100 kHz, and high-quality factor Q of 62, together with a high frequency stability up to 2.5 MHz, were obtained by using the reduced Fe powders with the aspect ratio of 30:1. Electromagnetic simulation further verified that the increased aspect ratio contributes to the reduced eddy current loss. This work provides a possibility for the application of reduced Fe powder in SMCs for high performance power inductors or other electronic components.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105156"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836924","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}
Pub Date : 2026-01-01Epub Date: 2025-12-01DOI: 10.1016/j.apt.2025.105128
Ting Yang , Junxiang Liu , Wenjun Duan , Jiaqu Yu , Jianrong Xu , Qingbo Yu
The adoption of environmental protection and energy conservation measures has led to increased interest among researchers and scholars in the centrifugal granulation of metallurgical slag and waste heat recovery technology. Variations in the production processes of metallurgical slag result in significant disparities in the physical properties of slag from different sources. Blast furnace slag and copper slag are two types of metallurgical slags distinguished by their characteristic properties. Blast furnace slag exhibits higher viscosity and surface tension, whereas copper slag displays lower viscosity and surface tension, resulting in differing granulation characteristics. This study employs numerical simulations to examine the flow patterns during centrifugal granulation and elucidate the mechanism of centrifugal granulation. The study determined that the breaking length to tip diameter ratio was consistent with the findings of Weber’s research. Additionally, it observed the atypical granulation evolution of two types of slag at elevated flow rates, and examined the variation rules of breakup wavelength, tip diameter, crushing length, particle size distribution, and average particle size across varying flow rates. The study also noted that the centrifugal granulation effect of copper slag was significantly influenced by its surface tension. The aforementioned findings can offer theoretical guidance for the implementation of the centrifugal granulation process in the treatment of metallurgical slag.
{"title":"Comparative study on centrifugal granulation behavior of blast furnace slag and copper slag","authors":"Ting Yang , Junxiang Liu , Wenjun Duan , Jiaqu Yu , Jianrong Xu , Qingbo Yu","doi":"10.1016/j.apt.2025.105128","DOIUrl":"10.1016/j.apt.2025.105128","url":null,"abstract":"<div><div>The adoption of environmental protection and energy conservation measures has led to increased interest among researchers and scholars in the centrifugal granulation of metallurgical slag and waste heat recovery technology. Variations in the production processes of metallurgical slag result in significant disparities in the physical properties of slag from different sources. Blast furnace slag and copper slag are two types of metallurgical slags distinguished by their characteristic properties. Blast furnace slag exhibits higher viscosity and surface tension, whereas copper slag displays lower viscosity and surface tension, resulting in differing granulation characteristics. This study employs numerical simulations to examine the flow patterns during centrifugal granulation and elucidate the mechanism of centrifugal granulation. The study determined that the breaking length to tip diameter ratio was consistent with the findings of Weber’s research. Additionally, it observed the atypical granulation evolution of two types of slag at elevated flow rates, and examined the variation rules of breakup wavelength, tip diameter, crushing length, particle size distribution, and average particle size across varying flow rates. The study also noted that the centrifugal granulation effect of copper slag was significantly influenced by its surface tension. The aforementioned findings can offer theoretical guidance for the implementation of the centrifugal granulation process in the treatment of metallurgical slag.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105128"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682955","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}
Pub Date : 2026-01-01Epub Date: 2025-12-11DOI: 10.1016/j.apt.2025.105148
Santanu Dey, Thomas Tourneur, Axel de Broqueville, Armand Béché, Juray De Wilde
A novel compact radial multizone dryer (RMD) has been tested at the pilot scale. In the radial centre of the chamber, hot air and the atomized solution are injected axially and counter current. In the periphery, mild temperature air is injected through multiple short vortex chambers to generate a rotational motion in the chamber and ensure high-G intensified drying and separation of the produced powder and hot drying air. The RMD allows fast initial drying of the injected droplets with hot air in the radial centre and fast evacuation of the initially dried powder to the periphery for final drying with mild temperature air. First, dry and water evaporation tests were carried out to gain insight in the flow pattern and temperature profile in the chamber. Next, a 4.5 min duration spray drying test was carried out using a 40 % maltodextrin model solution at a solution feed rate of 16.1 g/s. The tests demonstrated the working principle and performance of the RMD. Powder recovery and quality, as well as energy efficiency are discussed.
{"title":"Maltodextrin spray drying in a compact radial multizone dryer – First pilot plant findings","authors":"Santanu Dey, Thomas Tourneur, Axel de Broqueville, Armand Béché, Juray De Wilde","doi":"10.1016/j.apt.2025.105148","DOIUrl":"10.1016/j.apt.2025.105148","url":null,"abstract":"<div><div>A novel compact radial multizone dryer (RMD) has been tested at the pilot scale. In the radial centre of the chamber, hot air and the atomized solution are injected axially and counter current. In the periphery, mild temperature air is injected through multiple short vortex chambers to generate a rotational motion in the chamber and ensure high-G intensified drying and separation of the produced powder and hot drying air. The RMD allows fast initial drying of the injected droplets with hot air in the radial centre and fast evacuation of the initially dried powder to the periphery for final drying with mild temperature air. First, dry and water evaporation tests were carried out to gain insight in the flow pattern and temperature profile in the chamber. Next, a 4.5 min duration spray drying test was carried out using a 40 % maltodextrin model solution at a solution feed rate of 16.1 g/s. The tests demonstrated the working principle and performance of the RMD. Powder recovery and quality, as well as energy efficiency are discussed.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105148"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145733697","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}
Pub Date : 2026-01-01Epub Date: 2025-12-05DOI: 10.1016/j.apt.2025.105135
Baokai Wang , Ning Luo , Zewen Wang , Chengcheng Ye , Zongwen Fu , Xiaochao Wu , Qingkui Li , Jilin He
In this work, mechanical alloying is used to prepare single-phase W-10Ti alloy powder. The effects of ball milling time on the phase constitution, morphology, particle size, composition, oxygen content and the occurrence state of oxygen of W-10Ti alloy powder are thoroughly studied. The results show that the morphology of particles gradually changes from the irregular polyhedron to the sphere with increasing milling time. The D50 of the powder increases from ∼13.9 µm for initial powder to ∼24.1 µm after 2 h ball milling, and then decreases to ∼6.7 µm after 16 h ball milling. When milling for 8 h, W and Ti achieve a complete solid solution. The application of an excessive ball milling time readily results in a drastic increase in the oxygen content. The oxygen content of the powder increases from 1082.1 ppm for initial powder over 4130.9 ppm after 8 h ball milling to 6343.3 ppm after 16 h ball milling. This work offers critical theoretical insights and technical guidance for the controllable synthesis and characterization of pre-alloyed powders by physical metallurgy methods.
{"title":"Controllable preparation and characterization of single-phase W-10Ti powder for high-performance refractory alloy targets","authors":"Baokai Wang , Ning Luo , Zewen Wang , Chengcheng Ye , Zongwen Fu , Xiaochao Wu , Qingkui Li , Jilin He","doi":"10.1016/j.apt.2025.105135","DOIUrl":"10.1016/j.apt.2025.105135","url":null,"abstract":"<div><div>In this work, mechanical alloying is used to prepare single-phase W-10Ti alloy powder. The effects of ball milling time on the phase constitution, morphology, particle size, composition, oxygen content and the occurrence state of oxygen of W-10Ti alloy powder are thoroughly studied. The results show that the morphology of particles gradually changes from the irregular polyhedron to the sphere with increasing milling time. The <em>D</em><sub>50</sub> of the powder increases from ∼13.9 µm for initial powder to ∼24.1 µm after 2 h ball milling, and then decreases to ∼6.7 µm after 16 h ball milling. When milling for 8 h, W and Ti achieve a complete solid solution. The application of an excessive ball milling time readily results in a drastic increase in the oxygen content. The oxygen content of the powder increases from 1082.1 ppm for initial powder over 4130.9 ppm after 8 h ball milling to 6343.3 ppm after 16 h ball milling. This work offers critical theoretical insights and technical guidance for the controllable synthesis and characterization of pre-alloyed powders by physical metallurgy methods.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105135"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682959","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}
Pub Date : 2026-01-01Epub Date: 2025-12-01DOI: 10.1016/j.apt.2025.105124
Yujiao Zhao , Yingnan Han , Cong Zhou , Yan Li , Zhiyu Fang , Lei Xia , Dachuan Lu , Qifeng Jia , Yuheng Gao
As a new approach for large-scale solid waste utilization and carbon sequestration, carbon sequestration backfilling technology requires a clear understanding of slurry pipeline transport characteristics. As an unstable gas-phase component, the influence of CO2 on multiphase flow behavior must be considered. This study establishes a gas–liquid-solid Eulerian model coupled with Population Balance Model (PBM) to characterize CO2 bubble aggregation and reveal how inlet velocity, pipe diameter and residual CO2 content affect slurry flow characteristics. The results show that: (1) Slurry velocity presents an asymmetric distribution (top > bottom), due to multiphase coupling effect- CO2 enrichment at the top forms a gas–liquid lubricating layer to reduce resistance, while gangue particles deposition at the bottom increases resistance; (2) Parameter sensitivity: Increasing inlet velocity increases flow core velocity and pressure drop; Expanding pipe diameter reduces flow core velocity and pressure drop, while intensifying slurry-particle slip; Increasing residual CO2 content reduces pressure drop, slightly inhibits flow core velocity, and exacerbates the flow core offset. This study confirms residual CO2 content, inlet velocity, and pipe diameter as key parameters regulating pipeline transportation performance of carbon sequestration backfill slurry, providing theoretical support for parameter optimization and energy consumption control of slurry transportation system.
{"title":"Effect of residual CO2 on three-phase flow characteristics of carbon sequestration backfill slurry in straight horizontal pipeline","authors":"Yujiao Zhao , Yingnan Han , Cong Zhou , Yan Li , Zhiyu Fang , Lei Xia , Dachuan Lu , Qifeng Jia , Yuheng Gao","doi":"10.1016/j.apt.2025.105124","DOIUrl":"10.1016/j.apt.2025.105124","url":null,"abstract":"<div><div>As a new approach for large-scale solid waste utilization and carbon sequestration, carbon sequestration backfilling technology requires a clear understanding of slurry pipeline transport characteristics. As an unstable gas-phase component, the influence of CO<sub>2</sub> on multiphase flow behavior must be considered. This study establishes a gas–liquid-solid Eulerian model coupled with Population Balance Model (PBM) to characterize CO<sub>2</sub> bubble aggregation and reveal how inlet velocity, pipe diameter and residual CO<sub>2</sub> content affect slurry flow characteristics. The results show that: (1) Slurry velocity presents an asymmetric distribution (top > bottom), due to multiphase coupling effect- CO<sub>2</sub> enrichment at the top forms a gas–liquid lubricating layer to reduce resistance, while gangue particles deposition at the bottom increases resistance; (2) Parameter sensitivity: Increasing inlet velocity increases flow core velocity and pressure drop; Expanding pipe diameter reduces flow core velocity and pressure drop, while intensifying slurry-particle slip; Increasing residual CO<sub>2</sub> content reduces pressure drop, slightly inhibits flow core velocity, and exacerbates the flow core offset. This study confirms residual CO<sub>2</sub> content, inlet velocity, and pipe diameter as key parameters regulating pipeline transportation performance of carbon sequestration backfill slurry, providing theoretical support for parameter optimization and energy consumption control of slurry transportation system.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"37 1","pages":"Article 105124"},"PeriodicalIF":4.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145682956","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}
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