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CFD-CAD 통합해석을 이용한 초고압 차단기 내부의 냉가스 유동해석 프로그램 개발
Development of a CFD Program for Cold Gas Flow Analysis in a High Voltage Circuit Breaker Using CFD-CAD Integration

이종철   (LG산전(주) 전력연구소  ); 안희섭   (LG산전(주) 전력연구소  ); 오일성   (LG산전(주) 전력연구소  ); 최종웅   (LG산전(주) 전력연구소 연구소장  );
  • 초록

    It is important to develop new effective technologies to increase the interruption capacity and to reduce the size of a UB(Gas Circuit Breakers). Major design parameters such as nozzle geometries and interrupting chamber dimensions affect the cooling of the arc and the breaking performance. But it is not easy to test real GCB model in practice as in theory. Therefore, a simulation tool based on a computational fluid dynamics(CFD) algorithm has been developed to facilitate an optimization of the interrupter. Special attention has been paid to the supersonic flow phenomena between contacts and the observation of hat-gas flow for estimating the breaking performance. However, there are many difficult problems in calculating the flow characteristics in a GCB such as shock wave and complex geometries, which may be either static or in relative motion. Although a number of mesh generation techniques are now available, the generation of meshes around complicated, multi-component geometries like a GCB is still a tedious and difficult task for the computational fluid dynamics. This paper presents the CFD program using CFB-CAD integration technique based on Cartesian cut-cell method, which could reduce researcher's efforts to generate the mesh and achieve the accurate representation of the geometry designed by a CAD tools.


  • 주제어

    GCB(Gas Circuit Breakers) .   CFD-CAD integration .   mesh transformation method .   moving boundary condition .   cut-cell method.  

  • 참고문헌 (16)

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  • 이 논문을 인용한 문헌 (2)

    1. Lee, Jong-Chul ; Kim, Youn J. 2005. "Thermal Flow Characteristics Driven by Arc Plasmas in a Thermal Puffer Type GCB" 전기학회논문지. The transactions of the Korean Institute of Electrical Engineers. B, 전기기기 및 에너지변환시스템부문, 54(11): 527~532     
    2. Lee, Jong-Chul ; Kim, Youn-Jea 2007. "Effects of a Flow Guide on the Arcing History in a Thermal Puffer Plasma Chamber" 大韓機械學會論文集. Transactions of the Korean Society of Mechanical Engineers. B. B, 31(10): 832~839     

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