Computational Modeling of Gas Liquid Interfaces Using Different Multiphase Models

Computational Modeling of Gas Liquid Interfaces Using Different Multiphase Models

Ayub Akhtar, M.
Sohaib, M.
Rafique, M.

2006-09-05

A time dependent Computational Fluid Dynamics analysis of gas jets impinging onto liquid pools has been conducted. The aim of the study is to obtain a better understanding of highly complex, and industrially relevant flows in jetting system. Three different multiphase models, i.e., The Eulerian model, the volume of fluid model and the mixture model are used to analyze the surface deformations namely dimpling, splashing and penetration. The Standard k-? model is used to incorporate the Turbulence in the continuous phase. Two-dimensional axisymmetric geometries with different dimensions have been used in the study. Simulations are performed using commercial CFD code Fluent 6.1. PISO (pressure- implicit with splitting of operators) algorithm was employed to compute the pressure velocity coupling. The computed results are compared with experimental and theoretical data reported in the literature. Also the results of the study highlight and compare the discrepancies between the three multiphase models in capturing the flow structure and cavities formed at gas-liquid interfaces.

free surface flows
multiphase modeling
gas jetting
metallurgical industry
Computational Fluid Dynamics

http://resolver.tudelft.nl/uuid:5febf87f-89a0-4b31-b3c7-e1dce406e6a7

Conference proceedings

conference paper

(c) 2006 Ayub Akhtar, M.; Sohaib, M.; Rafique, M.