Flow-distributed oscillation, flow-velocity modulation, and resonance.
Flow-distributed oscillation, flow-velocity modulation, and resonance.
复制标题
流量分布振荡、流速调制和共振。
DOI:
10.1103/physreve.72.027202
复制
发表时间:
2005
期刊:
影响因子:
--
通讯作者:
M. Menzinger
中科院分区:
文献类型:
--
作者:
P. McGraw;M. Menzinger
We examine the effects of a periodically varying flow velocity on the standing- and traveling-wave patterns formed by the flow-distributed oscillation mechanism. In the kinematic (or diffusionless) limit, the phase fronts undergo a simple, spatiotemporally periodic longitudinal displacement. On the other hand, when the diffusion is significant, periodic modulation of the velocity can disrupt the wave pattern, giving rise in the downstream region to traveling waves whose frequency is a rational multiple of the velocity perturbation frequency. We observe frequency locking at ratios of 1:1, 2:1, and 3:1, depending on the amplitude and frequency of the velocity modulation. This phenomenon can be viewed as a novel, rather subtle type of resonant forcing.
影响因子:
4
作者:
Messerli,MA;Danuser,G;Robinson,KR
通讯作者:
Robinson,KR