title: Coupled self-organization: thermal interaction between two liquid films undergoing long-wavelength instabilities.
abstract: The effects of thermal coupling between two thin liquid layers separated by a gas layer are discussed. The liquid layers undergo long-wavelength instabilities driven by gravitational and thermocapillary stresses. To study the dynamics, both a linear stability analysis and a full numerical solution of the thin-film equations are performed. The results demonstrate that the stability properties of the combined system differs substantially from the case where both layers evolve independently from each other. Most prominently, oscillatory instabilities, not present in single-liquid layer configurations, may occur.
authors.affiliation: Center of Smart Interfaces, TU Darmstadt, Darmstadt, Germany.
authors.forename: Miklós
authors.initials: M
authors.lastname: Vécsei
authors.affiliation: Center of Smart Interfaces, TU Darmstadt, Darmstadt, Germany.
authors.forename: Mathias
authors.initials: M
authors.lastname: Dietzel
authors.affiliation: Center of Smart Interfaces, TU Darmstadt, Darmstadt, Germany.
authors.forename: Steffen
authors.initials: S
authors.lastname: Hardt
mesh_terms: D003198:Computer Simulation; D004735:Energy Transfer; D005740:Gases / Q000737:chemistry*; D006358:Hot Temperature; D008567:Membranes, Artificial; D008956:Models, Chemical; D009991:Oscillometry / Q000379:methods*; D012212:Rheology / Q000379:methods*; D012996:Solutions / Q000737:chemistry*
chemical_list: D005740:Gases; D008567:Membranes, Artificial; D012996:Solutions