Modelling on Spark Shortening under High-velocity Flow Conditions (First Report)


This study models short circuits of spark channels and discharge blow-outs. In the short circuit model, spark channels are short-circuited between two arbitrary locations when the electric potential difference between the two locations exceeds a certain threshold. The threshold is varied as a function of distance between the two locations as well as the discharge current. In the discharge blow-out model, discharge blows out when discharge current fall below a certain threshold, which increases with spark channel length. Furthermore, this study suggests modifying the Kim et al.’s equation which predicts electrical resistance of spark channels.放電経路の短絡と吹き消えを予測するモデルを構築した.短絡は放電経路上の任意の2点の電位差がある閾値を超えた時に発生し,その閾値は放電電流および2点間の距離に依存する.一方,吹き消えは放電電流がある閾値を下回った時に発生し,その閾値は放電経路長で決まる.放電経路の抵抗を予測するKimらの式も修正した.


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  • Accession Number: 01679814
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jul 26 2018 3:01PM