Computational fluid dynamics modelling of the regular wave flow regime in air-water downwards annular flows

Varallo, Nicolò; Mereu, Riccardo; Besagni, Giorgio; Markides, Christos N.

doi:10.1016/j.cherd.2023.11.062

Chemical Engineering Research and Design

2024

DOI: 10.1016/j.cherd.2023.11.062

|View full text |Cite

Computational fluid dynamics modelling of the regular wave flow regime in air-water downwards annular flows

Nicolò Varallo,

Riccardo Mereu,

Giorgio Besagni

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Annular two-phase flow in a small diameter tube: OpenFOAM simulations with turbulence damping vs optical measurements

Zanetti,

Berto,

Bortolin

et al. 2024

International Journal of Thermofluids

View full text Add to dashboard Cite

Annular two-phase flow in a small diameter tube: OpenFOAM simulations with turbulence damping vs optical measurements

Zanetti,

Berto,

Bortolin

et al. 2024

International Journal of Thermofluids

View full text Add to dashboard Cite

Study of turbulent wavy annular flow inside a 3.4 mm diameter vertical channel by using the Volume of Fluid method in OpenFOAM

Zanetti,

Berto,

Bortolin

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In annular downward flow, an annular liquid film flows at the perimeter of the channel pushed down by the gravity force and by the shear stress that the vapor core exerts on it. Depending on the working conditions, the vapor-liquid interface can be flat or rippled by waves. The knowledge of the liquid film thickness is very important for the study of annular flow condensation because the thermal resistance of the liquid is often the most important parameter controlling the heat transfer. A new approach for the simulation of annular flow is here proposed using an in-house developed transient solver based on the Volume of Fluid (VOF) adiabatic solver interIsoFoam available in OpenFOAM. With the VOF method, in addition to the standard set of equations (continuity and momentum), a transport equation related to the advection of the volume fraction scalar field has to be solved. The numerical setup consists of 2D axisymmetric domain. An adaptive mesh refinement (AMR) method is added to the solver to better capture the interface position. The k-ω SST model is used for turbulence modelling in both the liquid and vapor phases and a source term (whose magnitude is controlled by a model parameter named B) is included in the ω equation to damp the turbulence at the interface.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Computational fluid dynamics modelling of the regular wave flow regime in air-water downwards annular flows

Cited by 2 publications

References 32 publications

Annular two-phase flow in a small diameter tube: OpenFOAM simulations with turbulence damping vs optical measurements

Annular two-phase flow in a small diameter tube: OpenFOAM simulations with turbulence damping vs optical measurements

Study of turbulent wavy annular flow inside a 3.4 mm diameter vertical channel by using the Volume of Fluid method in OpenFOAM

Contact Info

Product

Resources

About