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Numerical parametric study of the evaporation rate of a liquid under a shear gas flow : Experimental validation and the importance of confinement on the convection cells and the evaporation rate. / Machrafi, H.; Lyulin, Y.; Iorio, C. S. и др.

в: International Journal of Heat and Fluid Flow, Том 72, 01.08.2018, стр. 8-19.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Vancouver

Machrafi H, Lyulin Y, Iorio CS, Kabov O, Dauby PC. Numerical parametric study of the evaporation rate of a liquid under a shear gas flow: Experimental validation and the importance of confinement on the convection cells and the evaporation rate. International Journal of Heat and Fluid Flow. 2018 авг. 1;72:8-19. doi: 10.1016/j.ijheatfluidflow.2018.05.003

Author

Machrafi, H. ; Lyulin, Y. ; Iorio, C. S. и др. / Numerical parametric study of the evaporation rate of a liquid under a shear gas flow : Experimental validation and the importance of confinement on the convection cells and the evaporation rate. в: International Journal of Heat and Fluid Flow. 2018 ; Том 72. стр. 8-19.

BibTeX

@article{389e1d9b16654a8280ab5970fc67aa67,
title = "Numerical parametric study of the evaporation rate of a liquid under a shear gas flow: Experimental validation and the importance of confinement on the convection cells and the evaporation rate",
abstract = "Evaporation can cause instability due to cooling effects on the density and surface tension. This causes, respectively, Rayleigh and Marangoni instabilities. When these instabilities grow sufficiently, self-sustained convection occurs. This convection causes changes into the evaporation rate and heat transfer rate. This also could change the heat transfer via the evaporation rate and can be important for industrial applications. It is the purpose of this paper to investigate the relation that exists between the overall evaporation rate and a set of parameters: temperature, gas flow and liquid thickness. Three-dimensional numerical simulations have been performed for this purpose and the results have been validated by means of an experimental setup, on which the numerical geometry has been based, characterized by a liquid evaporating through an opening in a cover sheet under a shear gas flow. It is shown that the temperature and the gas flow increase the evaporation rate. More interestingly, a maximum is observable for the evaporation rate as function of the liquid thickness. The explanation for these phenomena are drawn from the 3D numerical simulations. It appears that the maximum evaporation rate as a function of the liquid thickness depends on the confinement of the convection cells by the cover sheet, being assisted by the gas flow.",
keywords = "Confinement, Convection cell, Evaporation, Experimental validation, Numerical modeling, Shear flow",
author = "H. Machrafi and Y. Lyulin and Iorio, {C. S.} and O. Kabov and Dauby, {P. C.}",
year = "2018",
month = aug,
day = "1",
doi = "10.1016/j.ijheatfluidflow.2018.05.003",
language = "English",
volume = "72",
pages = "8--19",
journal = "International Journal of Heat and Fluid Flow",
issn = "0142-727X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Numerical parametric study of the evaporation rate of a liquid under a shear gas flow

T2 - Experimental validation and the importance of confinement on the convection cells and the evaporation rate

AU - Machrafi, H.

AU - Lyulin, Y.

AU - Iorio, C. S.

AU - Kabov, O.

AU - Dauby, P. C.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Evaporation can cause instability due to cooling effects on the density and surface tension. This causes, respectively, Rayleigh and Marangoni instabilities. When these instabilities grow sufficiently, self-sustained convection occurs. This convection causes changes into the evaporation rate and heat transfer rate. This also could change the heat transfer via the evaporation rate and can be important for industrial applications. It is the purpose of this paper to investigate the relation that exists between the overall evaporation rate and a set of parameters: temperature, gas flow and liquid thickness. Three-dimensional numerical simulations have been performed for this purpose and the results have been validated by means of an experimental setup, on which the numerical geometry has been based, characterized by a liquid evaporating through an opening in a cover sheet under a shear gas flow. It is shown that the temperature and the gas flow increase the evaporation rate. More interestingly, a maximum is observable for the evaporation rate as function of the liquid thickness. The explanation for these phenomena are drawn from the 3D numerical simulations. It appears that the maximum evaporation rate as a function of the liquid thickness depends on the confinement of the convection cells by the cover sheet, being assisted by the gas flow.

AB - Evaporation can cause instability due to cooling effects on the density and surface tension. This causes, respectively, Rayleigh and Marangoni instabilities. When these instabilities grow sufficiently, self-sustained convection occurs. This convection causes changes into the evaporation rate and heat transfer rate. This also could change the heat transfer via the evaporation rate and can be important for industrial applications. It is the purpose of this paper to investigate the relation that exists between the overall evaporation rate and a set of parameters: temperature, gas flow and liquid thickness. Three-dimensional numerical simulations have been performed for this purpose and the results have been validated by means of an experimental setup, on which the numerical geometry has been based, characterized by a liquid evaporating through an opening in a cover sheet under a shear gas flow. It is shown that the temperature and the gas flow increase the evaporation rate. More interestingly, a maximum is observable for the evaporation rate as function of the liquid thickness. The explanation for these phenomena are drawn from the 3D numerical simulations. It appears that the maximum evaporation rate as a function of the liquid thickness depends on the confinement of the convection cells by the cover sheet, being assisted by the gas flow.

KW - Confinement

KW - Convection cell

KW - Evaporation

KW - Experimental validation

KW - Numerical modeling

KW - Shear flow

UR - http://www.scopus.com/inward/record.url?scp=85047440580&partnerID=8YFLogxK

U2 - 10.1016/j.ijheatfluidflow.2018.05.003

DO - 10.1016/j.ijheatfluidflow.2018.05.003

M3 - Article

AN - SCOPUS:85047440580

VL - 72

SP - 8

EP - 19

JO - International Journal of Heat and Fluid Flow

JF - International Journal of Heat and Fluid Flow

SN - 0142-727X

ER -

ID: 13595028