한국전산유체공학회:학술대회논문집
- 2001.05a
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- Pages.181-188
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- 2001
Direct Numerical Simulation of the Flow Past an Oscillating Circular Cylinder
진동하는 원주주위 유동의 직접수치해석
- KANG Shin-Jeong ;
- TANAHASHI Mamoru (Tokyo Institute of Tech. Mechno-Aerospace Engineering) ;
- MIYAUCHI Toshio (Tokyo Institute of Tech. Mechno-Aerospace Engineering) ;
- NAM Cheong-Do ;
- LEE Young-Ho
- Published : 2001.05.01
Abstract
The flow past a circular cylinder forced to vibrate transversely is numerically simulated by solving the two-dimensional Wavier-Stokes equations modified by the vibration velocity of a circular cylinder at a Reynolds number of 164. The higher-order finite difference scheme is employed for the spatial discretization along with the second order Adams-Bashforth and the first order backward-Euler time integration. The calculated cylinder vibration frequency is between 0.60 and 1.30 times of the natural vortex-shedding frequency. The calculated oscillation amplitude extends to
Keywords
- Computational Fluid Dynamics;
- Direct Numerical Simulation;
- Circular Cylinder;
- Transversely Oscillation;
- Lock-in;
- Finite Difference Method