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각주를 이용한 광각디퓨저의 유동제어에 관한 연구 A Study on the Flow Control of Wide Angle Diffuser using Rectangular Prism

심의보, 조대환
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  • URLhttp://db.koreascholar.com/Article/Detail/291858
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한국기계기술학회지 (韓國機械技術學會誌)
제16권 제4호 (2014.08)
pp.1647-1652
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

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.

키워드
Rectangular Prism사각주Diffuser디퓨저Vortex와류Passive Control수동제어Aspect ratio변장비PIV measurementPIV계측
목차
Abstract
 1. 서론
 2. 실험 및 수치해석
 3. 결과 및 고찰
 4. 결론
 References
저자
  • 심의보(목포해양대학교 대학원) | Eui-Bo Shim
  • 조대환(목포해양대학교 기관시스템공학부) | Dae-Hwan Cho Corresponding Author