Flow transition behavior of the wetting flow between the film flow and rivulet flow on an inclined wall

Yoshiyuki ISO; Xi CHEN

doi:10.1115/1.4004765

Flow transition behavior of the wetting flow between the film flow and rivulet flow on an inclined wall

Yoshiyuki ISO^*, Xi CHEN

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

41 Citations (Scopus)

Abstract

Gas-liquid two-phase interfacial flows, such as the liquid film flows (also known as wetting flows on walls), are observed in many industrial processes including absorption, desorption, distillation, and so on. The present study focuses on the characteristics of wetting flows, in particular the drastic transition between the film flow and rivulet flow, as the liquid flow rate and the wall surface texture treatments are varied. The three-dimensional gas-liquid two-phase interfacial flow (wetting flow) simulation is based on the volume of fluid (VOF) model. As the liquid flow rate is increased and then decreased, a hysteresis of the transition between the film flow and rivulet flow is discovered, which implies that the transition phenomenon depends primarily on the history of the change of interfacial surface shape (which affects the process of the flow pattern transition). The applicability and accuracy of the present numerical simulation is validated by using the existing experimental and theoretical studies. Further study on the effect of texture geometry shows that the surface texture treatments added on the wall can impede liquid channeling and increase the wetted area.

Original language	English
Article number	091101
Number of pages	7
Journal	Journal of Fluids Engineering, Transactions of the ASME
Volume	133
Issue number	9
DOIs	https://doi.org/10.1115/1.4004765
Publication status	Published - Sept 2011
Externally published	Yes

Bibliographical note

Acknowledgment:
The authors acknowledge support from National Natural Science Foundation of China (50928601), National Science Foundation (CMMI-0643726), WCU (World Class University) program through the National Research Foundation of Korea (R32–2008– 000–20042–0), and Changjiang Scholar Program of Ministry of Education of China. Additional support was received from IHI Corporation. The authors gratefully appreciate the fruitful discussions and support by our colleagues in Professor Chen’s research group at Columbia University.

Keywords

CFD
film
gas-liquid interfacial flow
multiphase flow
packed column
rivulet
texture
transition
wetting flow

Access to Document

10.1115/1.4004765

Cite this

@article{1af48e37072b47319b88f6d0695d8eaf,

title = "Flow transition behavior of the wetting flow between the film flow and rivulet flow on an inclined wall",

abstract = "Gas-liquid two-phase interfacial flows, such as the liquid film flows (also known as wetting flows on walls), are observed in many industrial processes including absorption, desorption, distillation, and so on. The present study focuses on the characteristics of wetting flows, in particular the drastic transition between the film flow and rivulet flow, as the liquid flow rate and the wall surface texture treatments are varied. The three-dimensional gas-liquid two-phase interfacial flow (wetting flow) simulation is based on the volume of fluid (VOF) model. As the liquid flow rate is increased and then decreased, a hysteresis of the transition between the film flow and rivulet flow is discovered, which implies that the transition phenomenon depends primarily on the history of the change of interfacial surface shape (which affects the process of the flow pattern transition). The applicability and accuracy of the present numerical simulation is validated by using the existing experimental and theoretical studies. Further study on the effect of texture geometry shows that the surface texture treatments added on the wall can impede liquid channeling and increase the wetted area.",

keywords = "CFD, film, gas-liquid interfacial flow, multiphase flow, packed column, rivulet, texture, transition, wetting flow",

author = "Yoshiyuki ISO and Xi CHEN",

note = "Acknowledgment: The authors acknowledge support from National Natural Science Foundation of China (50928601), National Science Foundation (CMMI-0643726), WCU (World Class University) program through the National Research Foundation of Korea (R32–2008– 000–20042–0), and Changjiang Scholar Program of Ministry of Education of China. Additional support was received from IHI Corporation. The authors gratefully appreciate the fruitful discussions and support by our colleagues in Professor Chen{\textquoteright}s research group at Columbia University.",

year = "2011",

month = sep,

doi = "10.1115/1.4004765",

language = "English",

volume = "133",

journal = "Journal of Fluids Engineering, Transactions of the ASME",

issn = "0098-2202",

publisher = "American Society of Mechanical Engineers(ASME)",

number = "9",

}

TY - JOUR

T1 - Flow transition behavior of the wetting flow between the film flow and rivulet flow on an inclined wall

AU - ISO, Yoshiyuki

AU - CHEN, Xi

N1 - Acknowledgment: The authors acknowledge support from National Natural Science Foundation of China (50928601), National Science Foundation (CMMI-0643726), WCU (World Class University) program through the National Research Foundation of Korea (R32–2008– 000–20042–0), and Changjiang Scholar Program of Ministry of Education of China. Additional support was received from IHI Corporation. The authors gratefully appreciate the fruitful discussions and support by our colleagues in Professor Chen’s research group at Columbia University.

PY - 2011/9

Y1 - 2011/9

N2 - Gas-liquid two-phase interfacial flows, such as the liquid film flows (also known as wetting flows on walls), are observed in many industrial processes including absorption, desorption, distillation, and so on. The present study focuses on the characteristics of wetting flows, in particular the drastic transition between the film flow and rivulet flow, as the liquid flow rate and the wall surface texture treatments are varied. The three-dimensional gas-liquid two-phase interfacial flow (wetting flow) simulation is based on the volume of fluid (VOF) model. As the liquid flow rate is increased and then decreased, a hysteresis of the transition between the film flow and rivulet flow is discovered, which implies that the transition phenomenon depends primarily on the history of the change of interfacial surface shape (which affects the process of the flow pattern transition). The applicability and accuracy of the present numerical simulation is validated by using the existing experimental and theoretical studies. Further study on the effect of texture geometry shows that the surface texture treatments added on the wall can impede liquid channeling and increase the wetted area.

AB - Gas-liquid two-phase interfacial flows, such as the liquid film flows (also known as wetting flows on walls), are observed in many industrial processes including absorption, desorption, distillation, and so on. The present study focuses on the characteristics of wetting flows, in particular the drastic transition between the film flow and rivulet flow, as the liquid flow rate and the wall surface texture treatments are varied. The three-dimensional gas-liquid two-phase interfacial flow (wetting flow) simulation is based on the volume of fluid (VOF) model. As the liquid flow rate is increased and then decreased, a hysteresis of the transition between the film flow and rivulet flow is discovered, which implies that the transition phenomenon depends primarily on the history of the change of interfacial surface shape (which affects the process of the flow pattern transition). The applicability and accuracy of the present numerical simulation is validated by using the existing experimental and theoretical studies. Further study on the effect of texture geometry shows that the surface texture treatments added on the wall can impede liquid channeling and increase the wetted area.

KW - CFD

KW - film

KW - gas-liquid interfacial flow

KW - multiphase flow

KW - packed column

KW - rivulet

KW - texture

KW - transition

KW - wetting flow

UR - http://www.scopus.com/inward/record.url?scp=80052837962&partnerID=8YFLogxK

U2 - 10.1115/1.4004765

DO - 10.1115/1.4004765

M3 - Journal Article (refereed)

AN - SCOPUS:80052837962

SN - 0098-2202

VL - 133

JO - Journal of Fluids Engineering, Transactions of the ASME

JF - Journal of Fluids Engineering, Transactions of the ASME

IS - 9

M1 - 091101

ER -

Flow transition behavior of the wetting flow between the film flow and rivulet flow on an inclined wall

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this