각주를 이용한 디퓨저내의 유동제어에 관한 수치해석적 연구
Numerical Study on Flow Control in Diffuser by a Rectangular Prism
1
조회
0
다운로드
8
인용
0
참고문헌
키워드
초록
In this study, a computational work to investigate the influence of a turbulent wake flow by a rectangular prism with different aspect ratio, which is installed at the inlet of a diffuser. The k-ω model was adopted to simulate the turbulence. The continuity and time averaged Navier-stokes equations were solved by a implicit finite volume scheme. The computational results are qualitatively well compared to existing experimental data by PIV. The results show that the velocity recovery of the subsonic diffuser is dependent on the aspect ratio of rectangular prism.
Abstract
In this study, a computational work to investigate the influence of a turbulent wake flow by a rectangular prism with different aspect ratio, which is installed at the inlet of a diffuser. The k-ω model was adopted to simulate the turbulence. The continuity and time averaged Navier-stokes equations were solved by a implicit finite volume scheme. The computational results are qualitatively well compared to existing experimental data by PIV. The results show that the velocity recovery of the subsonic diffuser is dependent on the aspect ratio of rectangular prism.
참고문헌 (15)
- Hoffmann, J. A., "Effect of Small-Scale, high intensity inlet Turbulence on Flow in a two-Dimensional Diffuser", ASME J. Fluids Eng., 103, pp.283~289 (1984)
- Shu SUN, "Serpentine Inlet Performance Enhancement Using Vortex Generator Based Flow Control Original Research Article", Chinese J. of Aeronautics, 19, pp.10~17 (2006)
- Mochizuki, O., "Improvement of a Stalled-Diffuser Performance by a Turbulent Wake", Proceedings of the Fifth World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics, 3, pp.1879~1884 (2001)
- 김형수, "역압력구배가 있는 난류유동에 대한 수치적 연구", 대한기계학회논문집, 15(2), pp.668~676 (1991)
- Sullerey, R.K., "Effect of Inlet Flow Distortion on performance of Vortex Controlled Diffuser", ASME J. Fluid Eng., 114, pp.191~197 (1992)
- H.M.Jeong, "선회류 유입에 대한 원추 디퓨저의 정압회복 특성", 대한기계학회논문집B, 22(7), pp.503~508 (1998)
- M.S.Kim, "Installation of a wedge-Type Screen in a Wide Angle Diffuser", 10(2), pp.1~11 (1982), 한국한공우주공학회
- 이철재, "안내댐퍼를 이용한 광각디퓨저의 성능특성에 관한 연구", 한국마린엔지니어링학회 2006년도 전기학술대회논문집, pp.281~282 (2006)
- 조대환, "평판형 디퓨저의 성능해석에 관한 실험 및 수치해석", 2001년도 한국박용기관학회 춘계학술대회논문집, pp.63~68 (2001)
- J. P. Johnston, "Review: Diffuser Design and Performance Analysis by a unified Integral Method", j. Fluids Eng., 120, pp.6~18 (1998)
- R.E.Child, "A Computational Method for Subsonic Compressible Flow in Diffuser", AIAA 21st Aerospace Sciences Meeting (1983)
- A.S.Joseph, "Handbook of Fluid Dynamics and Fluid Machinery", pp.2024~2044 (1996), John Wiley & Sons, Inc
- 김진구, "중앙틈새를 관통하는 흐름을 갖는 사각형상 물체의 변장비에 따른 유동특성에 관한 연구", 한국기계기술학회지, 13(3), pp.25~30 (2011), 한국기계기술학회
- 이철재, "A Study on Velocity and Pressure Characteristics Behind the Rectangular Resistance Body of Rectangular Shape", 한국기계기술학회지, 12(4), pp.107~116 (2010), 한국기계기술학회
- 이철재, "광각디퓨저의 내부에 설치된 장방형 각주를 이용한 유동제어에 관한 연구", 한국기계기술학회지, 13(4), pp.57~62 (2011), 한국기계기술학회