한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2008년도 춘계학술대회논문집
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- Pages.479-482
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- 2008
진공차단부에서 발생하는 확산형 아크 수치해석
Numerical Study on a Diffused-mode Arc within a Vacuum Interrupter
- 조성훈 (성균관대학교 대학원) ;
-
황정훈
(성균관대학교 대학원) ;
- 이종철 (강릉대학교 기계자동차공학부) ;
- 최명준 (현대중공업(주) 기계전기연구소) ;
- 권중록 (현대중공업(주) 기계전기연구소) ;
-
김윤제
(성균관대학교 기계공학부)
- Cho, S.H. ;
-
Hwang, J.H.
;
- Lee, J.C. ;
- Choi, M.J. ;
- Kwon, J.R. ;
-
Kim, Y.J.
- 발행 : 2008.03.26
초록
In order to more closely examine the vacuum arc phenomena, it is necessary to predict the magnetohydrodynamic (MHD) characteristics by the multidisciplinary numerical modeling, which is coupled with the electromagnetic and hydrodynamic fields, simultaneously. In this study, the thermal-fluid characteristics of high current vacuum arcs were calculated by a commercial multiphysics package, ANSYS, in order to obtain Joule heat, Lorentz force and the interactions with flow variables. We assumed the diffused-mode arc within an AMF vacuum interrupter. It was found with four different currents that the temperature distributions on the anode surface are diffused uniformly without concentration in 7kA for both types (cup and coil-type). But the arc plasma transition and an increase of thermal flux density for increasing the applied current have caused the change of temperature distributions on the anode surface. We should need further studies on the two-way coupling method and radiation model for arc plasmas in order to accomplish the advanced analysis method for multiphysics.
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