Comment on “Faraday waves in a Hele–Shawcell” [Phys. Fluids 30, 042106 (2018)]

Abstract

Comment on “Faraday waves in a Hele-Shaw cell” [Phys Fluids 30, 042106 (2018).We propose improved dimensionless variables and scaling law to describe the height ofFaraday waves in a vertically vibrating Hele-Shaw cell. In comparison with those suggestedby Li et al., the influence of the liquid depth d on the wave height H is disregarded, andthe critical acceleration Fc, at which the Faraday instability is triggered, is now taken intoaccount. We support our approach with results from an additional set of experimental data,that includes the measurement of Fc, and encompasses the parameter range studied by Liet al.