Couette Vs. Langmuir Circulations: Comment On 'on The Helical Flow Of Langmuir Circulation - Approaching The Process Of Suspension Freezing' By Dethleff, Kempema, Koch And Chubarenko

摘要

This comment suggests that flow structures observed in the laboratory work of Dethleff et al., [Dethleff, D.E. Kempema, W., Koch, R. and Chubarenko, I., 2009. On the helical flow of Langmuir circulation - approaching the process of suspension freezing. Cold Regions Sci. and Tech., 56, 50-57.] and identified by the authors as Langmuir circulations may actually be Couette circulations, structures characteristic of the primary flow instability of a sheared channel flow. The difference between the two circulations has implications for the field conditions in which "dirty ice" forms.