중앙틈새를 관통하는 흐름을 갖는 사각형상 물체의 변장비에 따른 유동특성에 관한 연구
A Study on the Flow Characteristics of Rectangular Prism with Center Gap Through-flow at Different Aspect Ratio
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Flow control of flow field is essential to design efficient elements relating to fluid machineries. In this study, flow characteristics of rectangular prism with center gap through-flow at different aspect ratio was investigated to flow control. It was used a FLUENT 6.3 version to study flow field. It was found that the through-flow disturbs the development of vertical velocity component and decreased the vortex size and critical value of a rapid change in pressure coefficient distribution.
Abstract
Flow control of flow field is essential to design efficient elements relating to fluid machineries. In this study, flow characteristics of rectangular prism with center gap through-flow at different aspect ratio was investigated to flow control. It was used a FLUENT 6.3 version to study flow field. It was found that the through-flow disturbs the development of vertical velocity component and decreased the vortex size and critical value of a rapid change in pressure coefficient distribution.
참고문헌 (14)
- S. Mahmud, "Separation characteristics of fluid flow inside two parallel plates with wavy surface", J. Engineering Science, 40, pp.1495~1509 (2002)
- Okajima, A, "Strouhal number of rectangular cylinder", J. Fluid Mechanics, 123, pp.379~398 (1982)
- Okajima, A., "Numerical simulation of flow around rectangular cylinders", J. Wind Engineering and Industrial Aerodynamics, 33, pp.171~180 (1990)
- Norberg, C, "Flow around rectangular cylinders : Pressure forces and wake frequencies", J. Wind Engineering and Industrial Aerodynamics, 49, pp.187~196 (1993)
- 김경천, "직사각형 프리즘 상면에서 발생되는 원추형 와의 유동구조", 대한기계학회논문집 B, 25(5), pp.713~721 (2001), 대한기계학회
- 지호성, "두꺼운 난류경계층 내부에 놓인 직사각형 프리즘 주위의 유동구조", 대한기계학회논문집 B, 26(4), pp.9~586 (2002), 대한기계학회
- Uhlmann, M, "An immersed boundary method with direct forcing for the simulation of particulate flows", J. Computational Physics, 209, pp.448~476 (2005)
- Choi, H. C, "Effect of the computational time step on numerical solutions of turbulent flow", J. Computational Physics, 113, pp.1~4 (1994)
- Roma, A. M, "An adaptive version of the immersed boundary method", J. Computational Physics, 153, pp.509~534 (1999)
- 노기덕, "모서리에 펜스를 가진 정방형주의 유체력저감 특성", 한국마린엔지니어링학회지, 30(4), pp.389~395 (2006), 한국마린엔지니어링학회
- Cheng, M, "Numerical simulation of flow around a square cylinder in uniform-shear flow", Journal of Fluid and Structures, 23, pp.207~226 (1999)
- S. Murakami, "Examining the k-e model by means of wind tunnel test and large-eddy simulation of the turbulence structure around a cube", J. Wind Eng. Ind. Aerodyn, 35, pp.87~100 (1990)
- D.F.G. Durao, "Measurements of turbulent and periodic flows around a square cross-section cylinder", Exp. Fluids, pp.298~304 (1988)
- 이철재, "모서리 형상에 따른 수직벽 후류특성에 관한 연구", 한국기계기술학회지, 13(2), pp.101~106 (2011), 한국기계기술학회