EFFECT OF GAS TYPE ON FLOW CHARACTERISTICS IN A CIRCUIT BREAKER UNDER COLD FLOW SCENARIO

Yujiao Qiao, Shanika Matharage, Zhongdong Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents first stage of supersonic flow modelling in gas circuit breakers without an arc. Flow characterisation focused on shock and flow separation phenomenon. Velocity deceleration caused by shock will play a significant role in determining arc cooling performance and will impact thermal interruption capability. Gas properties such as specific heat ratio, density, and viscosity influenced the flow characteristics including shock location, strength and the flow separation process.

Original languageEnglish
Pages (from-to)136-140
Number of pages5
JournalPlasma Physics and Technology
Volume10
Issue number3
DOIs
Publication statusPublished - 11 Oct 2023

Keywords

  • flow separation
  • gas circuit breakers
  • gas properties
  • shock
  • supersonic flow

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