In this study, we numerically analyzed flow and particle transport near the electrostatic precipitator in the tunnel according to train runs. When there was no train running, flow field was formed by a precipitator. Flow emitted from precipitator blocks the path along the tunnel, and therefore most contaminated air passes through the precipitator and can be cleaned. On the other hand, flow pattern during the train run was affected by train induced wind. A strong straight flow was generated at the front of train, and back flow was formed in the opposite line. When a train runs upward only (train start from suction section to blow section), the subway train transports contaminated particles along the tunnel. For downward train runs only case, the cleaned air reentered the contaminated section with train wind. Both train runs case showed combined flow and particle concentration pattern of both single train runs.

1. 서 론
 2. 연구방법
  2.1 해석 대상
  2.2 해석 모델 및 조건
 3. 결 과
  3.1 열차 비운행시
  3.2 단선 운행시
  3.3 교행 운행시
 4. 결 론
 References

• 김명준(성균관대학교 기계공학부) | Myungjoon Kim
• 양성준(성균관대학교 기계공학부) | Sungjune Yang
• 박덕신(한국철도기술연구원 교통환경연구팀) | Duckshin Park
• 김형우(성균관대학교 성균나노과학기술원) | Hyeong-U Kim
• 권순박(한국철도기술연구원 교통환경연구팀) | Soon-Bark Kwon Corresponding author
• 김태성(성균관대학교 기계공학부, 성균관대학교 성균나노과학기술원) | Taesung Kim Corresponding author