Kármán vortex formation from a cylinder: Role of phase-locked Kelvin–Helmholtz vortices
- 1 September 1995
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids
- Vol. 7 (9) , 2288-2290
- https://doi.org/10.1063/1.868477
Abstract
The formation length of Kármán vortices can be drastically reduced by small‐amplitude excitation at a frequency much higher than the natural frequency of Kármán vortex formation, namely the Kelvin–Helmholtz (KH) frequency of the separating shear layer. Phase‐locked patterns of KH vortices are attainable. These spatially stationary patterns coexist, however, with the spatial and temporal development of the Kármán vortices.Keywords
This publication has 10 references indexed in Scilit:
- Quantitative interpretation of complex unsteady flows via high-image-density particle image velocimetryPublished by SPIE-Intl Soc Optical Eng ,1993
- High image-density particle image velocimetry using laser scanning techniquesExperiments in Fluids, 1993
- Aspect ratio and end plate effects on vortex shedding from a circular cylinderJournal of Fluid Mechanics, 1992
- Response of the shear layers separating from a circular cylinder to small-amplitude rotational oscillationsJournal of Fluid Mechanics, 1991
- On vortex formation from a cylinder. Part 1. The initial instabilityJournal of Fluid Mechanics, 1988
- Nonlinear interaction and the transition to turbulence in the wake of a circular cylinderJournal of Fluid Mechanics, 1987
- Large-scale vortex structures in turbulent wakes behind bluff bodies. Part 1. Vortex formation processesJournal of Fluid Mechanics, 1987
- Secondary vortices in the wake of circular cylindersJournal of Fluid Mechanics, 1986
- A disturbance-sensitive Reynolds number range of the flow past a circular cylinderJournal of Fluid Mechanics, 1965
- The transition to turbulence in the wake of a circular cylinderJournal of Fluid Mechanics, 1964