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Investigation of the Impact of Wind-Sand Flows on the Electric Field Along Composite Insulator Surface via Multi-Physical Field Coupling.

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Title: Investigation of the Impact of Wind-Sand Flows on the Electric Field Along Composite Insulator Surface via Multi-Physical Field Coupling.
Authors: Huang, Li1,2 (AUTHOR), Yin, Jiangjie2 (AUTHOR) 17671274174@163.com, Zhao, Yan1,2 (AUTHOR)
Source: Energies (19961073). Mar2026, Vol. 19 Issue 5, p1183. 18p.
Subject Terms: *Composite insulators, *Electrostatic fields, *Dielectric breakdown, *Electric distortion, *Electric insulators & insulation, *Granular flow
Abstract: Insulators in wind-sand flows distort the electric field along their surfaces due to the wind-sand electric field, threatening the safe operation of transmission lines. This paper models the impact of wind and sand flow on electric field distribution along transmission line insulators by integrating an Eulerian two-fluid field with an electrostatic field, incorporating the electrification process of sand particles. The study investigates how different wind speeds, dust concentration, and sand particle sizes affect the electric field distribution on insulators. The results show that the electric field along the insulator's surface decreases in steps, while the electric field forms a "U"-shape with high ends and a low center. In contrast to the clean environment, wind and sand flow generally increases the electric field. Under the influence of wind-sand flows, each 2 m/s wind speed rise reduces the electric field by about 2–3%. As sand concentration and particle size grow, the electric field decreases near the high-voltage end and increases near the grounded end. Higher concentrations or larger particles significantly boost the maximum electric field intensity, worsening distortion and increasing long-term insulation risks. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 192640908
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Investigation of the Impact of Wind-Sand Flows on the Electric Field Along Composite Insulator Surface via Multi-Physical Field Coupling.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Li%22">Huang, Li</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yin%2C+Jiangjie%22">Yin, Jiangjie</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> 17671274174@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yan%22">Zhao, Yan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Mar2026, Vol. 19 Issue 5, p1183. 18p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Composite+insulators%22">Composite insulators</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrostatic+fields%22">Electrostatic fields</searchLink><br />*<searchLink fieldCode="DE" term="%22Dielectric+breakdown%22">Dielectric breakdown</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+distortion%22">Electric distortion</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+insulators+%26+insulation%22">Electric insulators & insulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Granular+flow%22">Granular flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Insulators in wind-sand flows distort the electric field along their surfaces due to the wind-sand electric field, threatening the safe operation of transmission lines. This paper models the impact of wind and sand flow on electric field distribution along transmission line insulators by integrating an Eulerian two-fluid field with an electrostatic field, incorporating the electrification process of sand particles. The study investigates how different wind speeds, dust concentration, and sand particle sizes affect the electric field distribution on insulators. The results show that the electric field along the insulator's surface decreases in steps, while the electric field forms a "U"-shape with high ends and a low center. In contrast to the clean environment, wind and sand flow generally increases the electric field. Under the influence of wind-sand flows, each 2 m/s wind speed rise reduces the electric field by about 2–3%. As sand concentration and particle size grow, the electric field decreases near the high-voltage end and increases near the grounded end. Higher concentrations or larger particles significantly boost the maximum electric field intensity, worsening distortion and increasing long-term insulation risks. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=192640908
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19051183
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 1183
    Subjects:
      – SubjectFull: Composite insulators
        Type: general
      – SubjectFull: Electrostatic fields
        Type: general
      – SubjectFull: Dielectric breakdown
        Type: general
      – SubjectFull: Electric distortion
        Type: general
      – SubjectFull: Electric insulators & insulation
        Type: general
      – SubjectFull: Granular flow
        Type: general
    Titles:
      – TitleFull: Investigation of the Impact of Wind-Sand Flows on the Electric Field Along Composite Insulator Surface via Multi-Physical Field Coupling.
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          Name:
            NameFull: Huang, Li
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            NameFull: Yin, Jiangjie
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            NameFull: Zhao, Yan
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19961073
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              Value: 19
            – Type: issue
              Value: 5
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            – TitleFull: Energies (19961073)
              Type: main
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