Reconstruction of film thickness time traces for wavy turbulent free falling films

Kostoglou, Margaritis; Samaras, Konstantinos; Karapantsios, Thodoris D.

doi:10.1016/j.ijmultiphaseflow.2009.11.005

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Shape Of the Free Surface1

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Cited by 6 publications

(2 citation statements)

References 22 publications

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“…The wavelength is L. The wave height, H, is characterized by the difference between the highest point of the hump and the substrate underlying film. Besides using the VOF method to obtain the film shape, recently Kostoglou et al (2010) provided another approach to reconstruct the film thickness time traces.…”

Section: Wavy Surfacementioning

confidence: 99%

A CFD study of wave influence on film steam condensation in the presence of non-condensable gas

Wang

Chang

Corradini

2016

Nuclear Engineering and Design

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Section: Wavy Surfacementioning

confidence: 99%

A CFD study of wave influence on film steam condensation in the presence of non-condensable gas

Wang

Chang

Corradini

2016

Nuclear Engineering and Design

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“…Iterations are then necessary to obtain a profile that satisfies the physical and statistical criteria. This method has been considerably refined over times [12], but is used here in its simplest form.…”

Section: Shape Of the Free Surfacementioning

confidence: 99%

Numerical heat transfer analyses of a wavy-laminar falling film using moving curvilinear coordinates

Aubert

Candelier

Solliec

2012

International Communications in Heat and Mass Transfer

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Two‐dimensional modeling of an absorbing falling film in its development zone

Wylock

Scheid

2017

AIChE Journal

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This work presents the modeling of a vertical falling film expanding or shrinking from the inlet manifold. Considering a stationary approach, the film shape, the flow field and the absorption rate of an ambient gas are computed. For the flow field, one dimensional (1‐D) second‐order weighted integral boundary layer (WIBL) model is shown to accurately reproduce the film deformations. The gas transfer is then solved in a 2‐D predeformed domain to investigate the impact of the film deformations on the gas absorption rate. It is found that a significant mass transfer enhancement, as compared to a flat film, is obtained when the film is expanding due to the concomitant increase of the concentration gradient perpendicular to the interface. On the contrary, a slight hindrance of the mass transfer is observed when the film is shrinking, although it remains in this case very close to the flat film analytical solution. © 2017 American Institute of Chemical Engineers AIChE J, 63: 4370–4378, 2017

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Reconstruction of film thickness time traces for wavy turbulent free falling films

Cited by 6 publications

References 22 publications

A CFD study of wave influence on film steam condensation in the presence of non-condensable gas

A CFD study of wave influence on film steam condensation in the presence of non-condensable gas

Numerical heat transfer analyses of a wavy-laminar falling film using moving curvilinear coordinates

Two‐dimensional modeling of an absorbing falling film in its development zone

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