Imperial College London
Portrait Picture

Dr Giovanni Giustini

Faculty of Engineering, Department of Mechanical Engineering

Honorary Lecturer
 
 
 
//

Contact

 

+44 (0)20 7594 9681g.giustini12 Website

 
 
//

Location

 

City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Giustini:2021:10.1063/5.0058987,
author = {Giustini, G and Issa, R},
doi = {10.1063/5.0058987},
journal = {Physics of Fluids},
title = {A method for simulating interfacial mass transfer on arbitrary meshes},
url = {http://dx.doi.org/10.1063/5.0058987},
volume = {33},
year = {2021}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents a method for modelling interfacial mass transfer in Interface Capturingsimulations of two-phase flow with phase change. The model enables mechanistic predictionof the local rate of phase change at the vapour-liquid interface on arbitrary computationalmeshes and is applicable to realistic cases involving two-phase mixtures with large densityratios. The simulation methodology is based on the Volume Of Fluid (VOF) representation ofthe flow, whereby an interfacial region in which mass transfer occurs is implicitly identified bya phase indicator, in this case the volume fraction of liquid, which varies from the valuepertaining to the ‘bulk’ liquid to the value of the bulk vapour. The novel methodologyproposed here has been implemented using the Finite Volume framework and solutionmethods typical of ‘industrial’ Computational Fluid Dynamics (CFD) practice. The proposedmethodology for capturing mass transfer is applicable to arbitrary meshes without the need tointroduce elaborate but artificial smearing of the mass transfer term as is often done in othertechniques. The method has been validated via comparison with analytical solutions for planarinterface evaporation and bubble growth test cases, and against experimental observations ofsteam bubble growth.
AU  - Giustini,G
AU  - Issa,R
DO  - 10.1063/5.0058987
PY  - 2021///
SN  - 1070-6631
TI  - A method for simulating interfacial mass transfer on arbitrary meshes
T2  - Physics of Fluids
UR  - http://dx.doi.org/10.1063/5.0058987
UR  - http://hdl.handle.net/10044/1/90657
VL  - 33
ER  -
Download