Numerical Simulation of Multi-Scale Two-Phase Flows Using a Hybrid Interface-Resolving Two-Fluid Model (HIRES-TFM)

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Holger Marschall¹  Olaf Hinrichsen¹ 

[1] Catalysis Research Center and Chemistry Department, Technische Universität München

关键词: Multi-Scale Two-Phase Flows;    Two-Fluid Model;    Immersed Interface Concept;   

DOI  :  10.1252/jcej.12we074

来源: Maruzen Company Ltd

【 摘 要 】

References(38)Cited-By(2)This contribution outlines the coherent and mathematical rigorous derivation of a generalized multi-scale model framework that is based on the Eulerian–Eulerian two-fluid methodology. By conditional volume-averaging (based on the immersed interface concept) and subsequent closure modeling, the two-phase flow features are first divided into an unresolved portion (on average or sub-grid scale) and a resolved portion, and then interpreted on a physical basis leading to constitutive relations for closure. The resulting two-fluid model framework HIRES-TFM (Hybrid Interface-Resolving Two-Fluid Model) exhibits the same basic structure as found for single-phase flow, which results in an inherently stable method and enables us to reuse numerical techniques that have been developed for single-phase problems. Moreover, the conceptual approach is both compatible to the Large Eddy Simulation (LES) framework for turbulence modeling, and is expandable to multi-scale flow scenarios, i.e. dispersed and segregated two-phase flows.

【 授权许可】

Unknown