Power law observed in the motion of an asymmetric camphor boat under viscous conditions.

Power law observed in the motion of an asymmetric camphor boat under viscous conditions.
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在粘性条件下不对称樟脑船运动中观察到的幂律。

DOI:
10.1103/physreve.98.022606
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发表时间:
2018
期刊:
Physical review. E
影响因子:
--
通讯作者:
H. Kitahata
H. Kitahata
中科院分区:
--
文献类型:
--
作者:
M. Shimokawa;M. Oho;K. Tokuda;H. Kitahata

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研究了不对称樟脑船在甘油水溶液上的运动速度。通过在溶液中使用几种浓度的甘油来控制粘度。随着甘油浓度的增加,速度降低。我们提出了一个唯象模型,我们表明,速度随粘度的增加,根据幂律下降。我们的实验结果与我们的模型得到的结果一致。这些结果表明,在船的前侧处的樟脑浓度的衰减长度充分短于在船的后侧处的樟脑浓度的衰减长度。
We investigated the velocity of an asymmetric camphor boat moving on aqueous solutions with glycerol. The viscosity was controlled by using several concentrations of glycerol into the solution. The velocity decreased with an increase in the glycerol concentration. We proposed a phenomenological model, and we showed that the velocity decreased with an increase in the viscosity according to power law. Our experimental result agreed with the one obtained from our model. These results suggest that a decay length of the camphor concentration at the front side of the boat is sufficiently shorter than that of the rear side.
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