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A Novel Two-Step Model to Investigate Turbulent Gas Flows Shearing Thin Liquid Films

Bender, Achim and Stroh, Alexander and Frohnapfel, Bettina and Stephan, Peter and Gambaryan-Roisman, Tatiana (2019):
A Novel Two-Step Model to Investigate Turbulent Gas Flows Shearing Thin Liquid Films.
19, In: Proceedings in Applied Mathematics and Mechanics, (1), pp. e201900083. Wiley-VCH, ISSN 1617-7061,
DOI: 10.1002/pamm.201900083,
[Article]

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.

Item Type: Article
Erschienen: 2019
Creators: Bender, Achim and Stroh, Alexander and Frohnapfel, Bettina and Stephan, Peter and Gambaryan-Roisman, Tatiana
Title: A Novel Two-Step Model to Investigate Turbulent Gas Flows Shearing Thin Liquid Films
Language: English
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.

Journal or Publication Title: Proceedings in Applied Mathematics and Mechanics
Volume: 19
Number: 1
Publisher: Wiley-VCH
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 21 Nov 2019 12:16
DOI: 10.1002/pamm.201900083
Official URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.2019000...
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