Inward propagating chemical waves in Taylor vortices.
Inward propagating chemical waves in Taylor vortices.
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泰勒涡旋中向内传播的化学波。
DOI:
10.1103/physreve.81.047101
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Thompson BW
中科院分区:
文献类型:
--
作者:
Thompson BW
Advection-reaction-diffusion (ARD) waves in the Belousov-Zhabotinsky reaction in steady Taylor-Couette vortices have been visualized using magnetic-resonance imaging and simulated using an adapted Oregonator model. We show how propagating wave behavior depends on the ratio of advective, chemical and diffusive time scales. In simulations, inward propagating spiralflameletsare observed at high Damköhler number (Da). At low Da, the reaction distributes itself over several vortices and then propagates inwards as contracting ringpulses—also observed experimentally.