大气冰在铁路架空电力线导线上的积聚——一个数值案例研究

IF 0.4 Q4 ENGINEERING, MECHANICAL
{"title":"大气冰在铁路架空电力线导线上的积聚——一个数值案例研究","authors":"","doi":"10.21152/1750-9548.17.3.253","DOIUrl":null,"url":null,"abstract":"Ice accretion on railway overhead contact wires/conductors can cause various critical operational and safety issues such as overloading, arc formation, mass imbalance, and wire galloping. The focus of this multiphase numerical study is to understand and analyze the ice accretion physics on railway overhead powerline conductors at various operating conditions. In this regard, two different geometric shape conductors of 12 mm diameter, 1) a grooved shape contact wire (like an actual railway conductor); 2) a standard circular shape contact wire are used. Computational Fluid Dynamics (CFD) based numerical simulations are carried out for both geometric configurations at different operating parameters such as wind speed, Liquid Water Content (LWC), cloud droplet size distribution, Median Volume Diameter (MVD), and atmospheric temperature. Analysis shows that variation in the operating weather parameters for both geometric configurations considerably affects the ice accretion, both in terms of accreted ice thickness and mass.","PeriodicalId":51903,"journal":{"name":"International Journal of Multiphysics","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Atmospheric Ice Accretion on Railway Overhead Powerline Conductors- A Numerical Case Study\",\"authors\":\"\",\"doi\":\"10.21152/1750-9548.17.3.253\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ice accretion on railway overhead contact wires/conductors can cause various critical operational and safety issues such as overloading, arc formation, mass imbalance, and wire galloping. The focus of this multiphase numerical study is to understand and analyze the ice accretion physics on railway overhead powerline conductors at various operating conditions. In this regard, two different geometric shape conductors of 12 mm diameter, 1) a grooved shape contact wire (like an actual railway conductor); 2) a standard circular shape contact wire are used. Computational Fluid Dynamics (CFD) based numerical simulations are carried out for both geometric configurations at different operating parameters such as wind speed, Liquid Water Content (LWC), cloud droplet size distribution, Median Volume Diameter (MVD), and atmospheric temperature. Analysis shows that variation in the operating weather parameters for both geometric configurations considerably affects the ice accretion, both in terms of accreted ice thickness and mass.\",\"PeriodicalId\":51903,\"journal\":{\"name\":\"International Journal of Multiphysics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2023-09-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Multiphysics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21152/1750-9548.17.3.253\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Multiphysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21152/1750-9548.17.3.253","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0

摘要

铁路架空接触导线/导线上的冰积会导致各种关键的操作和安全问题,如过载、电弧形成、质量不平衡和导线飞奔。本多相数值研究的重点是了解和分析不同运行条件下铁路架空电力线导线上的冰积物理特性。在这方面,两种不同几何形状的导线直径为12mm, 1)沟槽状接触导线(类似于实际的铁路导线);2)采用标准圆形接触线。在风速、液态水含量(LWC)、云滴大小分布、中位体积直径(MVD)和大气温度等不同运行参数下,对两种几何构型进行了基于计算流体力学(CFD)的数值模拟。分析表明,两种几何构型的运行天气参数的变化对冰的增加有很大的影响,无论是在冰的厚度和质量方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Atmospheric Ice Accretion on Railway Overhead Powerline Conductors- A Numerical Case Study
Ice accretion on railway overhead contact wires/conductors can cause various critical operational and safety issues such as overloading, arc formation, mass imbalance, and wire galloping. The focus of this multiphase numerical study is to understand and analyze the ice accretion physics on railway overhead powerline conductors at various operating conditions. In this regard, two different geometric shape conductors of 12 mm diameter, 1) a grooved shape contact wire (like an actual railway conductor); 2) a standard circular shape contact wire are used. Computational Fluid Dynamics (CFD) based numerical simulations are carried out for both geometric configurations at different operating parameters such as wind speed, Liquid Water Content (LWC), cloud droplet size distribution, Median Volume Diameter (MVD), and atmospheric temperature. Analysis shows that variation in the operating weather parameters for both geometric configurations considerably affects the ice accretion, both in terms of accreted ice thickness and mass.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
International Journal of Multiphysics
International Journal of Multiphysics ENGINEERING, MECHANICAL-
CiteScore
1.20
自引率
57.10%
发文量
21
审稿时长
15 weeks
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信