Particuology最新文献_第2页

A comprehensive numerical investigation of the spray characteristics in spill-return atomizers using coupled VOF and Euler-Lagrange approach 使用 VOF 和 Euler-Lagrange 耦合方法对溢出回流式雾化器中的喷雾特性进行综合数值研究

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-26 DOI: 10.1016/j.partic.2024.10.010

Wassim Harizi, Fathi Hamdi, Mouldi Chrigui

{"title":"A comprehensive numerical investigation of the spray characteristics in spill-return atomizers using coupled VOF and Euler-Lagrange approach","authors":"Wassim Harizi, Fathi Hamdi, Mouldi Chrigui","doi":"10.1016/j.partic.2024.10.010","DOIUrl":"10.1016/j.partic.2024.10.010","url":null,"abstract":"<div><div>This research paper investigates a three-dimensional, two-phase flow dynamics, and atomization characteristics of a spill return atomizer. The method includes the internal flow field, primary and secondary atomization which are modeled using the hybrid approach Volume of Fluid to Discrete Phase Model (VOF to DPM). A comparison between the Large Eddy Simulation (LES) and The k-omega Shear Stress Transport turbulence model (SST <em>k</em><em>-ω</em>) in combination with the Volume of Fluid (VOF) model, along with the Adaptive Mesh Refinement (AMR) method, to predict the breakup of the liquid core is carried out. The investigation presents axial and tangential distributions of velocity, mean diameter, and spray cone angle of droplets at spray pressures of Spill-to-Feed Ratio (SFR) equal to 0.9. The numerical results are validated against the Phase-Doppler Anemometry (PDA) experiment. A relative error, of less than 7.3%, is recorded. The study systematically explores the spatiotemporal evolution of the flow field, including the liquid surface wave motion, liquid film characteristics, and the formation/atomization of the fluid spray cone downstream of the injector.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 319-332"},"PeriodicalIF":4.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of excellent building materials using geopolymer instead of traditional cement 使用土工聚合物替代传统水泥制备优质建筑材料

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-24 DOI: 10.1016/j.partic.2024.10.009

Yuanchuan Ren , Shanqisong Huang , Yan Hu , Nanqi Ren , Lingrui Kuang , Fenghui Wu , Dandan Chen , Xuejun Zhu , Qiang Niu

{"title":"Preparation of excellent building materials using geopolymer instead of traditional cement","authors":"Yuanchuan Ren , Shanqisong Huang , Yan Hu , Nanqi Ren , Lingrui Kuang , Fenghui Wu , Dandan Chen , Xuejun Zhu , Qiang Niu","doi":"10.1016/j.partic.2024.10.009","DOIUrl":"10.1016/j.partic.2024.10.009","url":null,"abstract":"<div><div>In order to improve the resource utilization rate of aluminum ash, high-quality building materials were prepared by replacing traditional cement with aluminum ash, and the performance of building materials under different conditions and factors was studied. The experimental results show that when the pressure was 300 MPa and the natural curing time was 3 days, the comprehensive performance of the brick reaches its optimum (compressive strength of 60 MPa, flexural strength of 1.3 MPa, and softening coefficient of about 0.9), far superior to other reported methods for preparing building materials. SEM-EDS, Particle size analysis and XRD confirmed that the crystal structure in aluminum ash undergoes a transformation under high-intensity mechanical pressure, forming cement-based active substances. This study not only obtained a new method for preparing building materials, but also further promoted the research on the resource utilization of aluminum ash, providing a new approach for the treatment and disposal of hazardous waste.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 333-342"},"PeriodicalIF":4.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A modified drag model for the fluidization of nano-modulated Group C particles 纳米调制 C 组颗粒流化的修正阻力模型

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-24 DOI: 10.1016/j.partic.2024.10.007

Kuankui Guo , Zhengyuan Deng , Jiaying Wang , Jingtao Wang , Jesse Zhu

{"title":"A modified drag model for the fluidization of nano-modulated Group C particles","authors":"Kuankui Guo , Zhengyuan Deng , Jiaying Wang , Jingtao Wang , Jesse Zhu","doi":"10.1016/j.partic.2024.10.007","DOIUrl":"10.1016/j.partic.2024.10.007","url":null,"abstract":"<div><div>Geldart Group C powders are inherently cohesive due to the strong interparticle forces, leading to severe agglomeration and poor fluidization capability. In this study, fluidization of nano-modulated Group C particles was investigated numerically. These particles, also known as Group C<sup>+</sup> particles, were obtained through the nanoparticle modulation technique, with which a small fraction of nanoparticles were vigorously mixed with Group C particles so that they are adhered to the surface of the much larger Group C particles. After modification, the cohesiveness of Group C<sup>+</sup> particle was significantly weakened, and therefore these particles could exhibit much better fluidization quality. However, the still existing cohesion resulted in the formation of small agglomerates within the system. To understand the internal agglomeration mechanisms of Group C<sup>+</sup> particles and their impact on fluidization behaviors, a new drag model was proposed based on experimental results and the postulation of particle agglomeration. The numerical results of the cases employing the new drag model agreed well with the experimental data in terms of total and dense phase expansion. These findings revealed the drag mechanism associated with modified Group C particles, contributing to the understanding of ultrafine particle fluidization.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"96 ","pages":"Pages 14-25"},"PeriodicalIF":4.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on the hydraulic performance and erosion wear characteristic of the centrifugal slurry pump 离心渣浆泵的水力性能和侵蚀磨损特性综述

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-24 DOI: 10.1016/j.partic.2024.10.006

Aoqiang Duan, Zhe Lin, Desheng Chen, Yi Li

引用次数: 0

Synergistic impact mechanism of particle size and morphology in superalloy powders for additive manufacturing 用于增材制造的超级合金粉中粒度和形态的协同影响机制

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-18 DOI: 10.1016/j.partic.2024.10.002

Lichong Zhang , Liang Zheng , Wenyong Xu , Na Liu , Yufeng Liu , Yibo Zhang , Jingjing Liang , Zhou Li , Guoqing Zhang

{"title":"Synergistic impact mechanism of particle size and morphology in superalloy powders for additive manufacturing","authors":"Lichong Zhang , Liang Zheng , Wenyong Xu , Na Liu , Yufeng Liu , Yibo Zhang , Jingjing Liang , Zhou Li , Guoqing Zhang","doi":"10.1016/j.partic.2024.10.002","DOIUrl":"10.1016/j.partic.2024.10.002","url":null,"abstract":"<div><div>The particle size and morphology of superalloy powders are crucial parameters that significantly influence the performance of additive manufacturing (AM) processes. This study investigates the effects of atomization pressure on these characteristics through a combination of computational fluid dynamics (CFD) simulations and vacuum induction melting gas atomization (VIGA) experiments. The CFD simulations revealed that increasing the atomization pressure from 2.0 MPa to 3.5 MPa resulted in a rise in maximum gas velocity from 526 m/s to 537 m/s and a reduction in median particle size (<em>D</em><sub>50</sub>) from 60.9 μm to 37.5 μm. Subsequent experiments demonstrated a decrease in <em>D</em><sub>50</sub> from 52.9 μm to 35.6 μm, and sphericity from 0.9432 to 0.9377, as pressure increased. The particle size results of the atomization experiments and numerical simulations show strong consistency, validating the accuracy of the numerical simulation results. The volume of hollow particles also increased slightly in specific size fractions. These results suggest that higher atomization pressures produce finer powders with lower sphericity, but also promote particle adhesion, reducing the overall refinement effect. This study provides insights into optimizing atomization conditions for the precise control of superalloy powders in AM.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 279-302"},"PeriodicalIF":4.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical study of maximum efficiency vortex finder insertion depth of a Stairmand cyclone 斯泰尔曼德旋风分离器最大效率涡流探测器插入深度的实验和数值研究

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-18 DOI: 10.1016/j.partic.2024.10.004

Shiwei Yuan , Guogang Sun , Liangce Xiao , Jianchen Sun , Zhen Qian , Gang Cao

{"title":"Experimental and numerical study of maximum efficiency vortex finder insertion depth of a Stairmand cyclone","authors":"Shiwei Yuan , Guogang Sun , Liangce Xiao , Jianchen Sun , Zhen Qian , Gang Cao","doi":"10.1016/j.partic.2024.10.004","DOIUrl":"10.1016/j.partic.2024.10.004","url":null,"abstract":"<div><div>The vortex finder is essential in cyclone separators, significantly affecting separation performance via its diameter and insertion depth. The current study shows that as the insertion depth of the vortex finder increases, the separation efficiency initially increases and then decreases, and there exists a maximum point with which the corresponding insertion depth is the maximum efficiency insertion depth (<em>S</em><sub>MEID</sub>). However, there are inconsistent conclusions in the existing literature regarding the maximum efficiency insertion depth and a lack of explanation for the flow field mechanism at the maximum efficiency insertion depth. This study examines the Stairmand type cyclone using 13 μm silicon micro-powder, employing numerical simulation and cold mold experiments to explore the effects of the vortex finder's insertion depth and diameter on separation performance and flow field. The results indicate that the insertion depth has minimal impact on pressure drop. The maximum efficiency insertion depth of the vortex finder decreases as the diameter decreases and is independent of this insertion depth with respect to the inlet velocity. Analysis of the flow field reveals that the maximum efficiency insertion depth is essentially the result of a \"competitive and synergistic\" mechanism between the annular space separation capability and the separation space separation capability.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 343-355"},"PeriodicalIF":4.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid evaluating caking tendency of nonspherical crystals by developing a shape-based crystal bridge growth model 通过建立基于形状的晶桥生长模型，快速评估非球形晶体的结块趋势

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-18 DOI: 10.1016/j.partic.2024.10.003

Mingxuan Li , Mengdi Zhang , Wei Zhao , Leida Zhang , Mingyang Chen , Dandan Han , Junbo Gong

{"title":"Rapid evaluating caking tendency of nonspherical crystals by developing a shape-based crystal bridge growth model","authors":"Mingxuan Li , Mengdi Zhang , Wei Zhao , Leida Zhang , Mingyang Chen , Dandan Han , Junbo Gong","doi":"10.1016/j.partic.2024.10.003","DOIUrl":"10.1016/j.partic.2024.10.003","url":null,"abstract":"<div><div>Crystal caking is a decisive factor affecting the quality of high-end fine chemicals, whereas lack of shape-to-caking understanding results in considerable waste of time, severely delaying high-end fine chemical development. On this basis, a morphology-based caking evaluation model is developed with 74% and 96% time savings compared to previous modeling and non-modeling experiments, respectively, while guaranteeing superior accuracy. The crystal morphology is expressed as a function of the aspect ratio and the particle size distribution. The quantitative relationships between these parameters and the caking tendency are deduced, firstly achieving morphology anti-caking criterion establishment. For D-allulose crystals, considering humidity, and particle size, an aspect ratio is below 3 is the standard for combating caking, which has not been reported previously. Herein, the specific effect of crystal morphology on caking behavior is quantitatively described. The knowledge obtained can be applied to rapidly and quantitatively design anti-caking storage systems for products in warehouses.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 265-278"},"PeriodicalIF":4.1,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supplying active lithium to single-crystal Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 with Li2MnO3 coating served as cathode for Li-ion batteries 为作为锂离子电池正极的带有 Li2MnO3 涂层的单晶 Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 提供活性锂

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-16 DOI: 10.1016/j.partic.2024.09.019

Li Dong , Xiaodong Guan , Yang Zhou , Shibao Tang , Feng Chen

{"title":"Supplying active lithium to single-crystal Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 with Li2MnO3 coating served as cathode for Li-ion batteries","authors":"Li Dong , Xiaodong Guan , Yang Zhou , Shibao Tang , Feng Chen","doi":"10.1016/j.partic.2024.09.019","DOIUrl":"10.1016/j.partic.2024.09.019","url":null,"abstract":"<div><div>Ni-rich layered oxide with Ni molar content larger than 90% was regarded as an extremely promising candidate for cathode material applied in lithium-ion batteries owing to the significant discharging capacity and low cost. Nevertheless, rigorous cycling attenuation resulted from the crystal structure collapse and unstable particles interface deeply restrained the commercial application. In the work, LiNi<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>O<sub>2</sub> was modified by Ta<sup>5+</sup> doping and Li<sub>2</sub>MnO<sub>3</sub> covering, which was aimed to enhance the structure stability, defend the electrolyte attacking and promote Li<sup>+</sup> migration during cycling. The material characterization demonstrated the cathodes after Ta<sup>5+</sup> doping delivered the larger cell lattice parameters and higher cation ordering, which was helpful to improve the rate property and discharge capacity at low temperature. The Li<sub>2</sub>MnO<sub>3</sub> layer was tightly adhered on the outside of LiNi<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>O<sub>2</sub>, which could effectively relieve the electrolyte attacking and sustain the particle morphology integrity. As a result, 2 wt% Li<sub>2</sub>MnO<sub>3</sub> coated Li(Ni<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>)<sub>0.98</sub>Ta<sub>0.02</sub>O<sub>2</sub> exhibited the outstanding discharge capacity of 150.2 mAh g<sup>−1</sup> at 10.0 large current density and 140.6 mAh g<sup>−1</sup> at −30 °C as well as the remarkable capacity retention of 93.1% after 300 cycles. Meanwhile, the pouch full batteries obtained by 2 wt% Li<sub>2</sub>MnO<sub>3</sub> coated Li(Ni<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>)<sub>0.98</sub>Ta<sub>0.02</sub>O<sub>2</sub> also showed the more stable storage capability, cyclic property in comparison with bare LiNi<sub>0.90</sub>Co<sub>0.05</sub>Mn<sub>0.05</sub>O<sub>2</sub>.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 303-318"},"PeriodicalIF":4.1,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cyclone dimensionless pressure drop, cut size, and separation slope: One dimensionless number (Reynolds) to rule them all 旋风分离器的无量纲压降、切割尺寸和分离斜率：一个无量纲数（雷诺数）决定一切

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-13 DOI: 10.1016/j.partic.2024.10.001

Dzmitry Misiulia , Göran Lidén , Sergiy Antonyuk

引用次数: 0

Bioengineered silver nanoparticles induced apoptosis through upregulation of caspase 3 and caspase 8 proteins in breast adenocarcinoma MDA-MB-231 cells and impede angiogenesis 生物工程银纳米粒子通过上调乳腺癌 MDA-MB-231 细胞中的 caspase 3 和 caspase 8 蛋白诱导细胞凋亡并阻碍血管生成

IF 4.1 2区材料科学

Particuology Pub Date : 2024-10-12 DOI: 10.1016/j.partic.2024.09.020

Shahnaz Majeed , Nurul Izzah Binti Abu Bakar , Mohammad Danish , Afzan Binti Mahmad , Mohamad Nasir Mohamad Ibrahim , Norul Aini Zakariya , Sreenivas Patro Sisinthy , Ravindran Muthukumarasamy , Abdulaziz M. Alanazi , Mohammed Tahir Ansari , Ohoud A. Jefri

{"title":"Bioengineered silver nanoparticles induced apoptosis through upregulation of caspase 3 and caspase 8 proteins in breast adenocarcinoma MDA-MB-231 cells and impede angiogenesis","authors":"Shahnaz Majeed , Nurul Izzah Binti Abu Bakar , Mohammad Danish , Afzan Binti Mahmad , Mohamad Nasir Mohamad Ibrahim , Norul Aini Zakariya , Sreenivas Patro Sisinthy , Ravindran Muthukumarasamy , Abdulaziz M. Alanazi , Mohammed Tahir Ansari , Ohoud A. Jefri","doi":"10.1016/j.partic.2024.09.020","DOIUrl":"10.1016/j.partic.2024.09.020","url":null,"abstract":"<div><div>In recent years, a lot of research has been done on silver nanoparticles (SNP) due to their numerous applications in the biomedical, pharmaceutical, and drug delivery industries. In this present study SNP were green synthesized using <em>Melicope lunu-ankenda</em> (<em>M. lunu-ankenda</em>) leaf extract. The addition of AgNO<sub>3</sub> causes a color change. L-arginine addition results in further colour changes confirming conjugation. A UV–Vis spectrophotometric examination showed that the absorption peak for SNP was 435 nm, while the peak for L-arginine SNP (cSNP) was 422 nm. FTIR analysis confirmed the association of amides and amines with nanoparticles. The spherical nature of the silver was disclosed by SEM, and its elemental character is verified by EDS. The thermal stability of the nanoparticles is determined by TGA analysis, while TEM examination verifies their spherical shape. Using the MTT assay, these cSNP exhibited outstanding toxicity analysis (IC<sub>50</sub> 38.72 μg/ml) against MDA-MB-231 cells. These cSNP causes damage to the mitochondria (JC1 staining), which causes oxidative stress and the production of ROS with 83% of DCF expression in cancer cells. Furthermore, as demonstrated by the Comet assay and DAPI, these cSNP cause good DNA damage in the treated cells. Additionally, using flow cytometry, cSNPs potentially trigger apoptosis by triggering the expression of caspase 3 and caspase 8 proteins. Additionally, through CAM, cSNP demonstrated strong anti-angiogenesis activity by reducing the number of blood vessel branches. These findings suggest that cSNP may be crucial for drug delivery and cancer treatment.</div></div>","PeriodicalId":401,"journal":{"name":"Particuology","volume":"95 ","pages":"Pages 252-264"},"PeriodicalIF":4.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0