Marangoni convection at alcohol aqueous solutions-air interfaces

For aqueous n-heptanol solutions and in a nearly two-dimensional flow, two strikingfeatures have been detected: - a shift of the minimum of the surface tension - a discrepancy between the observed Marangoni flow velocities and the expected ones from static surface tension values. A qualitative explanation is given. © 1993 Kluwer Academic Publishers.SCOPUS: ar.j