In this study, we have modeled a wide angle diffuser with rectangular prism and tried to investigate the influence of a turbulent wake flow by PIV and a numerical simulation using computational fluid dynamics based on steady-state Navier-Stokes equation and standard k-ε model. A commercial CFD program, FLUENT, is used on the analysis. The turbulent wake is generated by a rectangular prism, which is installed at the diffuser. The results show that it is possible to flow control by installing a rectangular prism within the diffuser and velocity recovery is the highest in aspect ratio 1:1.

Abstract
 1. 서론
 2. 실험 및 수치해석
 3. 결과 및 고찰
 4. 결론
 References

• 심의보(목포해양대학교 대학원) | Eui-Bo Shim
• 조대환(목포해양대학교 기관시스템공학부) | Dae-Hwan Cho Corresponding Author