压气式SF_6断路器气流特性数值分析

Numerical Analysis of Gas Flow in a Puffer Type SF_6 Circuit Breaker

本文采用Ｇａｌｅｒｋｉｎ有限元法，对ＣＧＩＳ－１１０ｋＶＳＦ６断路器内的轴对称气流场进行了数值模拟，给出了在不同开距和不同上下游压比条件下灭弧室气流场的数值解。计算结果反映了流场结构和边界条件对流动特性的影响。本文所来用的计算工具构成了气体断路器气流特性计算机辅助分析的基础。

Gas flow in an axisymmetric interrupter was calculated by Galerkin finite element method. The numerical results in various condition, e. g. various stroke or various pressure ratio, are presented. The calculated results demonstrate the influence of geometry and boundary condition on the characteristic of gas flow. The numerical methods are founded on the basis of computer aided analysis for GCB.