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STUDY ON NUMERICAL ANALYSIS AND TURBULENCE MODELS FOR ARC DISCHARGES IN HIGH-VOLTAGE INTERRUPTERS  

Lee, J.C. (강릉원주대학교 기계자동차공학부)
Publication Information
Journal of computational fluids engineering / v.15, no.3, 2010 , pp. 9-15 More about this Journal
Abstract
In this study, we calculated arc discharges and flow characteristics driven by arcs in a thermal puffer chamber, which is one of most outstanding high-voltage interrupters, for understanding the complex physics and the probability of thermal breakdown. The four main parts of arc model for this virtual-reality are radiation, PTFE ablation, Cu evaporation, and turbulence. Among these important parts the turbulence model can be critical to the reliability of computation results during the whole arcing history because the plasma flow is affected by high heat energy and mass momentum. Two turbulence models, the Prandtl's mixing length model and the standard $k-\varepsilon$ model, are applied for these calculations and are compared with pressure-rise inside chamber and arc voltage between the contacts as well as flow characteristics near current zero.
Keywords
Arc Discharge; Breakdown; High-Voltage Circuit Breaker; Coupled-Field Analysis; Turbulence Model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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