Stationary Solutal Marangoni Instability in a Two-Layer System

✍ Scribed by S. Slavtchev; M. Hennenberg; J.-C. Legros; G. Lebon

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 313 KB
• Volume: 203
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.1998.5525

✦ Synopsis

Their model was improved by including specific mech-The effect of different mass transfer mechanisms on the Marananisms of mass transfer by Hennenberg et al. ( 8 ) who goni instability in a two-layer system of finite width is studied. A considered a two-step transfer in each phase. Indeed, dilute soluble surfactant is transferred across the interface between three main differences exist between the mathematical two immiscible fluid phases. A linear stability analysis is develformulations describing the mechanisms of heat and soloped, and the corresponding eigenvalue problem is solved analytiute transfers through the interface limiting two immiscically for the onset of monotonic instability. Mass transfer is asble liquid layers, which were not all considered by sumed to be controlled by bulk diffusion or/and by the adsorption-Sternling and Scriven ( 7 ) . First, accumulation of matter desorption mechanism. The influences of the diffusivity ratio and along the interface, which is not possible for heat transfer the layer width ratio on the instability of the system are examined. and, thus, the mass flux reaching the interface, may differ