Regimes of vortex shedding from an in-line oscillating circular cylinder in the uniform flow |
| |
Authors: | Liu Song Fu Song |
| |
Institution: | (1) Department of Engineering Mechanics, Tsinghua University, 100084 Beijing, China |
| |
Abstract: | A finite volume method for the time dependent viscous incompressible flow around an in-line oscillating circular cylinder
at Reynolds number of 200, 855 is presented in this paper. The Navier-Stokes equations in a finite volume form are solved
with a moving grid system, based on a time dependent coordinate transformation. To investigate the vortex-shedding characteristics
behind the circular cylinder and the effects of Reynolds number and other non-dimensional parameters such as reduced amplitude
and reduced frequency, several numerical schemes have been tested with different amplitude and frequency close toSt
0 and a harmonic at each Reynolds number. Present numerical results indicate several types of vortex shedding mode which is
known mainly depending on the reduced frequency and also the reduced amplitude, which is called synchronization or lock-on.
The project supported by NSFC (19725208) and the project China NKBRSF (2001CB409600) |
| |
Keywords: | circular cylinder in-line oscillating vortex shedding reduced frequency |
本文献已被 维普 SpringerLink 等数据库收录! |
|