Journal of Electrostatics最新文献_第9页

Numerical simulation of metal aerosol electrostatic collection based on CFD 基于CFD的金属气溶胶静电收集数值模拟

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-07-22 DOI: 10.1016/j.elstat.2025.104137

Yizhe Luo , Hongliang Li , Chang Liu , Zebang Tan , Xuwei Zeng , Hui Yang , Jian Shan

{"title":"Numerical simulation of metal aerosol electrostatic collection based on CFD","authors":"Yizhe Luo , Hongliang Li , Chang Liu , Zebang Tan , Xuwei Zeng , Hui Yang , Jian Shan","doi":"10.1016/j.elstat.2025.104137","DOIUrl":"10.1016/j.elstat.2025.104137","url":null,"abstract":"<div><div>In order to solve the problem of low collection efficiency of aerosol particles, a model and corresponding optimization strategy were constructed by using COMSOL Multiphysics simulation and analysis. In this study, the finite element method in COMSOL Multiphysics was used to simulate the impact of various radon progeny metal aerosol particle sizes on the flow and electric fields. The metal aerosol was generated using a method that combines fluid flow and electric fields for collection. The model optimizes collection by selecting the right flow velocity (10.0–400.0 mm/s) and voltage (5.0 kV) for the electric field in the collection chamber, which enhances particle aggregation. After the particles are further charged using an electroneedle, they accumulate on the cathode plate, as the flow velocity increases, the collection efficiency is enhanced in the middle and diminishes at the edges, and it is more effective for smaller particle sizes. The simulation results depict the flow and electric field distributions of aerosol particles with varying sizes. By integrating this approach with aerosol simulations, a new strategy to enhance the electrostatic collection efficiency of metal powder is developed.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104137"},"PeriodicalIF":1.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Bipolar leader theory-based simulation analysis of aircraft lightning strike attachment zones 基于双极先导理论的飞机雷击附着区仿真分析

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-10-28 DOI: 10.1016/j.elstat.2025.104199

Zhiwei Chen , Xinjie Zhao , Nianwen Xiang , Shengxin Huang , Lijian Ding , Shenjian He , Shulai Wang , Chaoqun Wang , Zengwei Lyu

引用次数: 0

Scaling of energy delivered through an electrostatic discharge to a small series load 通过静电放电传递给小串联负载的能量的比例

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-11-19 DOI: 10.1016/j.elstat.2025.104205

Claudia A.M. Schrama , Calvin Bavor , John W. Rose , P. David Flammer , Charles G. Durfee

引用次数: 0

Trap energy distribution in aircraft dielectric materials through surface potential decay method 利用表面电位衰减法捕获飞机介质材料中的能量分布

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-09-30 DOI: 10.1016/j.elstat.2025.104181

Dong Chen, XiaoFeng Hu, Lei Wang, Ming Wei, JianPing Zhang, Shuai Zhou

{"title":"Trap energy distribution in aircraft dielectric materials through surface potential decay method","authors":"Dong Chen, XiaoFeng Hu, Lei Wang, Ming Wei, JianPing Zhang, Shuai Zhou","doi":"10.1016/j.elstat.2025.104181","DOIUrl":"10.1016/j.elstat.2025.104181","url":null,"abstract":"<div><div>Charge deposition on aircraft insulation material surfaces is challenging to discharge via electrostatic discharger, potentially leading to streamer discharge and interference with avionic systems. To mitigate this risk and enhance flight safety, a quantitative understanding of charge trap distributions in these materials is essential. Three common aircraft dielectric materials—fiberglass epoxy, silicon carbide, and epoxy resin—were selected to conduct surface potential decay experiments. By systematically analyzing the potential decay characteristics of these materials under two corona charging polarities, their electron and hole trap distribution parameters were accurately determined. The results demonstrate that fiberglass epoxy exhibits predominant deep traps (1.025 eV) for both electrons and holes with high density (>7 × 10<sup>19</sup> m<sup>−3</sup>), leading to significantly slower potential decay (τ<sub>10 %</sub> > 7000 s) and stronger charge binding capacity. Silicon carbide possesses dominant shallow electron traps (0.95 eV, 1.8 × 10<sup>20</sup> m<sup>−3</sup>) resulting in faster decay (τ<sub>10 %</sub> < 2000 s). Epoxy resin also features primarily shallow traps for both carriers (0.93–0.96 eV), with decay times exceeding 3200 s. These distinct trap distribution characteristics (energy, density, and dominance of shallow/deep levels) arise from inherent material microstructural differences (e.g., polar groups, crystalline defects, interfacial structures) and directly govern their charge accumulation and dissipation dynamics in specific aircraft applications (radomes, engine components, structural parts). The findings provide quantitative data for optimizing aircraft dielectric material selection and electrostatic protection design.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104181"},"PeriodicalIF":2.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145226880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Preliminary analysis of the electrical charge distribution within liquids using PEA 用PEA初步分析液体中的电荷分布

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-08-28 DOI: 10.1016/j.elstat.2025.104161

Matéo Dautremont , Paul Leblanc , Laurent Berquez , Thierry Paillat

{"title":"Preliminary analysis of the electrical charge distribution within liquids using PEA","authors":"Matéo Dautremont , Paul Leblanc , Laurent Berquez , Thierry Paillat","doi":"10.1016/j.elstat.2025.104161","DOIUrl":"10.1016/j.elstat.2025.104161","url":null,"abstract":"<div><div>Measuring the distribution of the electrical charges in various materials is of great importance for numerous industrial applications. The development of measurement method has been widely studied in the case of dielectric solids. However, for liquids, the development of measurement techniques is not as much established. Liquid materials, as for solid, are used in wide range of industrial applications, such as transformers or electrochemical energy storage. In order to determine the charge distribution within liquid materials, measurement technique used for solids have been adapt to be apply to liquids. The pulsed electro-acoustic (PEA) method has recently been adapted to liquids. It has been applied to various liquids under electrical constraints. Its application to liquids without electrical constraint, with the aim of measuring the natural distribution of electric charges (electrical double layer), is not widely done. This work proposes to apply the PEA method to various liquids without subjecting it to an electrical constraint, in order to assess its capability to measure the electrical double layer. The influence of different parameters on the response is presented and the trends obtained are compared with the trends expected from a theoretical model.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104161"},"PeriodicalIF":2.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144907502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Quadrupole moment of conducting toroids with known capacitance 电容已知的导电环的四极矩

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-11-14 DOI: 10.1016/j.elstat.2025.104207

John Lekner

引用次数: 0

Quantitative study on the impact of air humidity on ion flow field and ground Electrical parameters of ±800 kV UHVDC transmission lines 空气湿度对±800kv特高压直流输电线路离子流场及接地电气参数影响的定量研究

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-09-09 DOI: 10.1016/j.elstat.2025.104169

Zhaobing Han , He Zhu , Tuoxin Fu , Zhuang Tian

{"title":"Quantitative study on the impact of air humidity on ion flow field and ground Electrical parameters of ±800 kV UHVDC transmission lines","authors":"Zhaobing Han , He Zhu , Tuoxin Fu , Zhuang Tian","doi":"10.1016/j.elstat.2025.104169","DOIUrl":"10.1016/j.elstat.2025.104169","url":null,"abstract":"<div><div>—UHV DC transmission lines have long transmission distance and complex terrain and meteorological conditions along the way. The ion flow field of UHVDC transmission lines is significantly affected by environmental conditions and meteorological factors. Changes in meteorological conditions such as rainfall, wind speed, fog, temperature and humidity will lead to changes in the ion flow field near the UHV DC transmission line corridor. Therefore, it is of great practical value to study the influence of other meteorological conditions on the ion flow field by studying the distribution of synthetic electric field(the resultant electric field generated by multiple electric fields at the same point) and ion current density near the UHV DC transmission line under air humidity conditions. In this paper, a calculation model of ion flow field considering the influence of air humidity is established. Taking Yunguang ±800 kV transmission line as the research object, the ion flow field affected by air humidity is calculated. The distribution law of the surface synthetic electric field and ion flow density affected by air humidity is analyzed, and the validity of the calculation results is verified.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104169"},"PeriodicalIF":2.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145018643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Rapid degradation of methylene blue using a dielectric barrier discharge plasma reactor with a water circulation system 水循环介质阻挡放电等离子体反应器快速降解亚甲基蓝

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-09-25 DOI: 10.1016/j.elstat.2025.104185

Hee Jae Lee , Hae Kwang Kim , Min Woo Kim , Sun Kyung Jung , Kang Il Kim , Ki Bum Kim , Yong Cheol Hong

{"title":"Rapid degradation of methylene blue using a dielectric barrier discharge plasma reactor with a water circulation system","authors":"Hee Jae Lee , Hae Kwang Kim , Min Woo Kim , Sun Kyung Jung , Kang Il Kim , Ki Bum Kim , Yong Cheol Hong","doi":"10.1016/j.elstat.2025.104185","DOIUrl":"10.1016/j.elstat.2025.104185","url":null,"abstract":"<div><div>Methylene blue (MB, C<sub>16</sub>H<sub>18</sub>ClN<sub>3</sub>S) in water was efficiently degraded using a dielectric barrier discharge (DBD) plasma reactor. The air plasma generated by the flat-DBD system was introduced into the MB solution through a micro-bubbler. Despite the short lifetimes of the active species formed in plasma, they effectively decomposed contaminants upon contact with water. This study investigated the influence of various factors, including air flow rate, initial solution concentration, ozone production, and energy yield, on MB degradation. The results showed that the proposed plasma reactor could efficiently degrade MB. Furthermore, a mechanism to enhance the reaction rate was optimized using the flat-DBD plasma module and a 300-L circulating treatment system. With an initial MB concentration of 5 mg/L, one cycle from the 1000-L tank to the 300-L reactor took 50 min, achieving a 97.5 % degradation rate after 60 min. The energy yield for MB degradation was 22.5 g/kWh, and ozone production reached 3.9 g/h. A potential rapid degradation pathway for the MB solution is proposed in this study. This reactor design shows promising potential for applications related to the degradation of MB in dyeing wastewater and industrial processes.</div></div>","PeriodicalId":54842,"journal":{"name":"Journal of Electrostatics","volume":"138 ","pages":"Article 104185"},"PeriodicalIF":2.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145157558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

PWP measurement of charge distribution in dielectric and conductive liquids under DC electric field 直流电场作用下介质和导电液体电荷分布的PWP测量

IF 2.1 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-10-01 DOI: 10.1016/j.elstat.2025.104182

V. Berry , P. Leblanc , S. Hole , T. Paillat

引用次数: 0

Automated waveform optimization for electroaerodynamic actuators using Genetic Programming Algorithms 基于遗传规划算法的电动气动执行器自动波形优化

IF 1.9 4区工程技术

Journal of Electrostatics Pub Date : 2025-12-01 Epub Date: 2025-07-28 DOI: 10.1016/j.elstat.2025.104135

Cristhian Zárate Evers , Thomas Duriez , Guillermo Artana

引用次数: 0