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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Capillarity-Induced Propagation Reversal of Chemical Waves in a Self-oscillating Gel
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Capillarity-Induced Propagation Reversal of Chemical Waves in a Self-oscillating Gel

机译：毛细血管诱导自振凝胶中的化学波的传播逆转

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摘要

In a self-oscillating gel, unidirectional chemical waves generated by the Belousov-Zhabotinsky reaction can drive locomotion, which results from the difference between the push and pull forces in the wavefront and waveback, respectively. In a narrow tube, such a gel is subject not only to the asymmetric force engendered by the propagation of the chemical waves but also to additional forces originating from the capillary effect in the polymer skeleton. The ends of a self-oscillating gel in a tube are squeezed unequally during unidirectional motion, causing new waves of higher frequency and ultimately giving rise to reversal of the direction of chemical wave propagation. This peculiar phenomenon of a self-oscillating gel in a narrow glass tube results in a nonmonotonic evolution of the gel locomotion velocity.
机译：在自振荡凝胶中，由Belousov-Zhabotinsky反应产生的单向化学波可以驱动运动的运动，这分别由波前和波回的推动力之间的差异产生。 在窄管中，这种凝胶不仅受到通过化学波的传播，而且对源自聚合物骨架中的毛细作用的额外力的额外力进行诱导。 在管中的自振荡凝胶的端部在单向运动期间不均匀地挤压，导致更高频率的新波，最终导致逆转化学波传播方向。 在窄玻璃管中的自振动凝胶的这种特殊现象导致凝胶运动速度的非单调演变。

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