ABOUT INSTABILITY PROGRESS IN SWITCHING ARC IN HV-GAS BLAST CIRCUIT BREAKER

被引：0

作者：

Averyanova, S. ^{[1
]}

Akatnov, N. ^{[2
]}

Tonkonogov, E. ^{[3
]}

机构：

[1] Dept Elect Apparatuses, St Petersburg, Russia

[2] Polytech Univ, Dept Gas Dynam, St Petersburg, Russia

[3] Polytech Univ, Dept Elect Apparatuses, St Petersburg, Russia

来源：

XIXTH SYMPOSIUM ON PHYSICS OF SWITCHING ARC | 2011年

关键词：

switching arc; turbulent; turbulent viscosity model; instability;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is known that the main cause of turbulence occurrence is the instability of stream. In this paper, we show that one of the types of instability the varicose instability plays the main role in a high growth of turbulent energy in arc in the vicinity of current zero. So, it can be shown, that the velocity of growth of turbulent energy, as the result of the work of instability, is proportional to the compound value from density in the arc and cold external gas. Earlier we had presented the model of turbulence, in which the character density was defined as the mean value from density in arc and cold external gas. And also we show that this model give a good agreement between calculations results and experimental data for blast devices with SF6.

引用

页码：89 / 92

页数：4

共 8 条

[1] Akatnov N, 2007, XVIITH SYMPOSIUM ON PHYSICS OF SWITCHING ARC, VOL 1: CONTRIBUTED PAPERS, P5
[2] [Anonymous], THEORETICAL PHYS HYD
[3] Averianova S, 2009, XVIIITH SYMPOSIUM ON PHYSICS OF SWITCHING ARC, P111
[4] Drazin P.G., 2002, Introduction to Hydrodynamic Stability
[5] Kochin N. E., 1965, Theoretical Hydromechanics, V1
[6] Kochin N E, 1964, Teoreticheskaya Gidromekhanika, V1
[7] MONIN AS, 1992, STAT FLUID MECH MECH, V1
[8] DIELECTRIC RECOVERY OF AN AXIALLY BLOWN SF6-ARC AFTER CURRENT ZERO .1. EXPERIMENTAL INVESTIGATIONS
SCHADE, E
RAGALLER, K
[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 1982, 10 (03) : 141 - 153

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