Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326796
Type: Artigo
Title: An Alternative Cfd Tool For Gas Dispersion Modelling Of Heavy Gas
Author: Fiates
Juliane; Cruz Santos
Raphael Ribeiro; Fernandes Neto
Fernando; Francesconi
Artur Zaghini; Simoes
Vinicius; Vianna
Savio S. V.
Abstract: The numerical simulation of gas dispersion is of great importance in various areas of engineering such as optimisation, synthesis of chemical process, petroleum industry and process safety. The OpenFOAM (Open Field Operation and Manipulation) code is a free and open source computational fluid dynamics (CFD) program. The current research is focused on the development and customisation of a computational tool for handling gas dispersion of heavy gases, such a LNG and CO2. The novel CFD tool relies on OpenFOAM framework. The core of the work is based on the OpenFOAM solver rhoReactingBuoyantFoam to handle gas dispersion. A series of CFD simulations has been performed for methane and CO2. The source term of the former is modelled by HSM (Hybrid Switch Model). The model comprises contribution from HEM (Homogeneous Equilibrium Model) approach, frozen model and non-equilibrium model for CO2 leak. The novel approach switches between equilibrium and non-equilibrium conditions based on the meta-stable parameter on the grounds of thermodynamics and experimental observations. Good agreement with experimental data is observed. Numerical findings for methane leakage from the proposed CFD tool are compared with experimental data and FLACS. Good agreement is observed. (C) 2016 Elsevier Ltd. All rights reserved.
Subject: Chemical Process Safety
Computational Fluid Dynamics (cfd)
Gas.dispersion
Co2 Source Model
Openfoam
Editor: Elsevier Sci Ltd
Oxford
Rights: fechado
Identifier DOI: 10.1016/j.jlp.2016.08.002
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0950423016302091?via%3Dihub
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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