Power law observed in the motion of an asymmetric camphor boat under viscous conditions.
basic_science · Level V
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- Record sourced from PubMed, PMID 30253558.
- Also identified by DOI 10.1103/PhysRevE.98.022606.
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Abstract
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.