A Novel Two‐Step Model to Investigate Turbulent Gas Flows Shearing Thin Liquid Films. Issue 1 (18th November 2019)

• Record Type: Journal Article
• Authors: Bender, Achim; Stroh, Alexander; Frohnapfel, Bettina; Stephan, Peter; Gambaryan-Roisman, Tatiana
• Other Names: Eberhardsteiner J. guestEditor.; Schöberl M. guestEditor.
• Is Part Of: Proceedings in applied mathematics and mechanics. Volume 19:Issue 1(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-11-18
• Subjects: Applied mathematics -- Periodicals; Engineering mathematics -- Periodicals; Mathematical physics -- Periodicals; 519
• DOI: 10.1002/pamm.201900083
• Languages: English
• ISSNs: 1617-7061

Abstract

Abstract: In this work a two‐step model to investigate a thin liquid film sheared by a turbulent gas flow is presented. In a first step, a direct numerical simulation of the gas phase is conducted. The turbulent shear stress at the lower wall is stored and used as a boundary condition for the long‐wave evolution of the liquid film, which is calculated in a second step. Results show that the turbulent shear stress fluctuations have to be considered when evaluating turbulent‐two‐phase channel flows.