Scaling Theory Analysis for the Turbulence Motion of Nozzle Arc[J]. High voltageapparatus, 1990, (3): 3-9.DOI:
喷口电弧中紊流流动的相似理论分析
摘要
从描述流场特性的无量纲准则数——Nusselt数入手
应用比拟理论
推导出喷口电弧的紊流Nu数与其它无量纲准则数Re数及Pr数之间的关系式
为分析紊流状态下电弧等离子体动态特性提供了新的计算方法。在有关试验测量所得数据基础上
计算了紊流条件下的电弧弧柱热传导时间常数特性。通过与层流条件下的计算数据相比较
揭示了紊流效应在电弧熄灭中所起的作用。
Abstract
Using non-dimension criterion "Nusselt" and scaling theory.the relative formula between the turbulence’s "TV"" of nozzle arc and the non-dimension criterion "Re’ and "Pr" can be approached.It offers a new calculation for analyzing arc plasma motion under turbulent condition.Comparing with calculating results under a laminar flow condition
the paper shows the effect in interrupting arc by turbulence.