In this study, a experimental work to investigate the influence of a turbulent wake flow on the velocity distribution of a diffuser with PIV method. The turbulent wake is generated by a rectangular prism, which is installed at the inlet of a diffuser. The results show that the velocity recovery of the subsonic diffuser is dependent on the height and location of rectangular prism. It is found that a certain height of the rectangular prism to generate the turbulent wake give a better velocity recovery, compared with no rectangular prism.

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

• 이철재(동명대학교 자동차공학과) | Cheol-Jae Lee
• 조대환(목포해양대학교 기관시스템공학부) | Dae-Hwan Cho