Dispersion conditions of exhaust gas emitted from the ship stack are varied due to the state of sea surface, ship velocity and external environment condition etc. In the certain circumstances, the exhaust gas flowing backward phenomena is appeared due to the shape of vessel structure. The negative pressure layers can appear at the rear part of deck house and cause the exhaust gas flowing backward phenomena. In this study, 1:100 scale model ship was manufactured and tested in the large wind tunnel test center to ensure the exhaust gas flow patterns. Measurement results showed that the greatest pressure point was x/H=1.55 at zone 6 and Case 2 was a relatively high wind pressure distribution.

Abstract
 1. 서론
 2. 풍동실험 및 방법
 3. 결과 및 고찰
 4. 결론
 참고문헌

• 최상범(목포해양대학교 실습선) | Sang-Bom Choe
• 조대환(목포해양대학교 기관시스템공학부) | Dae-Hwan Cho