How molecular effects affect solutal Marangoni flows

The treatment of fluid-fluid interfaces in flows becomes important as systems approach the nanoscale. At such scales interfaces have a distinct width and properties such as shear viscosity differ from those of the bulk phases. Using molecular dynamics simulations we show how these effects can be quantified and modeled in the case of nanoscale Marangoni convection. The success of our approach suggests that it can also be used for generalized nanoscale flows involving fluid-fluid interfaces.