vortex shedding


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Related to vortex shedding: Strouhal number

vortex shedding

[′vȯr‚teks ‚shed·iŋ]
(fluid mechanics)
In the flow of fluids past objects, the shedding of fluid vortices periodically downstream from the restricting object (for example, smokestacks, pipelines, or orifices).
References in periodicals archive ?
In order to use permeable cylinders instead of solid cylinders, the vortex shedding in the wake region of only permeable cylinder was investigated inclusively.
Simulations are started in a static fluid field, and the cylinder moves according to (17) until periodic vortex shedding is established (see Figure 4 for an overview of the vortex shedding).
Dai, "Vortex shedding control using jets: a computational study with lattice Boltzmann method," in ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, Busan, South Korea, 2016.
Effect of thermal buoyancy on vortex shedding behind a square cylinder in cross flow at low Reynolds numbers.
Vortex shedding whose Strouhal number equals to that of two-dimensional circular cylinder exists in the wake of the mirror.
Resonance may occur if the vortex shedding frequency coincides with a natural frequency of the part or structure.
In Figure 7(c), a combined resonance occurs owing to both parametric excitation and vortex-shedding excitation, where both excitations satisfy the condition that can excite resonance of a system under only parametric or vortex shedding excitation, and its motion amplitude is obviously larger and more unstable than those of the other cases in Figures 7(a), 7(b), and 7(c).
For Re = 100 shown in Figure 10(c), the vortex shedding is observed for all three particles, but the particles are settling together in the channel, which is different in the case of Re = 200.
Vortex-induced vibration is a resonant phenomenon caused by the periodic vortex shedding from the structures.
The majority is to study the effect of fixed dividers on vortex shedding. For the elastic-supported cylinder-splitter plate system, Ding et al.
The motion of the fluid at the edge of the square column is very irregular, which will greatly affect the vortex shedding near the column wall.