This study is done as a comparison analysis on existing studies on analysis and interpretations of solenoids. When there is no power in a solenoid valve, a flow passage is formed from a pressurized ports, Pc, to Ps, which are connected to a crankcase of a pressurizer. An inlet to Pc port is varied in three different sizes: 3.8 ㎜(Type-1), 4.0 ㎜(Type-2) and 4.2 ㎜(Type-3). It is determined that there will be changes in coolant flow into the solenoid valve and the flow properties from Pc port to Ps port are compared and analyzed. As the results, the flow demonstrates the maximum speed of 500 ㎧, 46 ㎧ and 433 ㎧ with 0.2 ㎫ for the inflow pressure and the maximum speed of 1400 ㎧, 129 ㎧ and 1200 ㎧ with 1.5 ㎫ for the inflow pressure.

Abstract
 1. 서론
 2. 해석 모델 및 조건
 3. 수치해석을 통한 유동 해석 결과
  3.1 Pc포트 3.8 ㎜(Type-1)의 해석 결과
  3.2 Pc포트 4.0 ㎜(Type-2)의 해석 결과
  3.3 Pc포트 4.2 ㎜(Type-3)의 해석 결과
 4. 결론
 후기
 References

• 김한국(국립 공주대학교 대학원 기계공학과) | H. K. Kim
• 조행묵(국립 공주대학교 기계자동차공학부) | H. M. Cho Corresponding Author