Abstract
Vortex-induced vibration of a circular cylinder was numerically simulated by using the SST turbulent model that is based on a RANS method. The 2D model foundation and grid partition were achieved in the special pre-processor software ICEM-CFD. The characteristics of vortex induced vibration were researched by changing the velocity of fluid and keeping the frequency of circular cylinder constant. The frequency lock-in phenomenon was observed when the reduced velocity is in the range of 4.9-5.1 with a displacement peak at the reduced velocity of 5.023. In the mean time, a beating behavior was observed in the displacement time-histories of the circular cylinder in the unlock-in region. The regions of lock-in of numerical simulations and experiments are compared, and the results of theirs are approached. The amplitude of the circular cylinder gained by numerical simulation is compared with the results of a semi-empirical formula and experiments, and satisfying results are received.
| Original language | English |
|---|---|
| Pages (from-to) | 509-513 |
| Number of pages | 5 |
| Journal | Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture and Technology |
| Volume | 38 |
| Issue number | 4 |
| State | Published - Aug 2006 |
| Externally published | Yes |
Keywords
- Cylinder
- Lock-in
- Numerical simulation
- SST model
- Turbulent model
- Vortex induced vibration
Fingerprint
Dive into the research topics of 'CFD numerical simulation of vortex-induced vibration of a circular cylinder based on a RANS method'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver