Partition method of wall friction and interfacial drag force model for horizontal two-phase flows

The article “Effect of interfacial drag force model on code prediction for upward adiabatic two-phase bubbly flow in vertical channels” written by Takashi Hibiki and Tetsuhiro Ozaki, was originally published electronically on the publisher’s internet portal (currently SpringerLink) on 04 January 2020 without open access. After publication in Volume 2, Issue 4, page 212–224, the author(s) decided to opt for Open Choice and to make the article an open access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2020 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Drift-flux parameter modeling of vertical downward gas–liquid two-phase flows for interfacial drag force formulation

Nuclear Engineering and Design ◽

10.1016/j.nucengdes.2021.111185 ◽

2021 ◽

Vol 378 ◽

pp. 111185

Author(s):

Chuanshuai Dong ◽

Takashi Hibiki

Keyword(s):

Drag Force ◽

Two Phase Flows ◽

Two Phase ◽

Drift Flux ◽

Flux Parameter ◽

Interfacial Drag

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A new centrifugal correction drag force model for gas solid-particle two-phase flow

Powder Technology ◽

10.1016/j.powtec.2016.09.043 ◽

2016 ◽

Vol 303 ◽

pp. 124-129 ◽

Cited By ~ 3

Author(s):

Zhi Shang

Keyword(s):

Solid Particle ◽

Drag Force ◽

Two Phase Flow ◽

Force Model ◽

Phase Flow ◽

Two Phase

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Evaluation of the Performance of the Drag Force Model in Predicting Droplet Evaporation for R134a Single Droplet and Spray Characteristics for R134a Flashing Spray

Energies ◽

10.3390/en12244618 ◽

2019 ◽

Vol 12 (24) ◽

pp. 4618

Author(s):

Zhi-Fu Zhou ◽

Dong-Qing Zhu ◽

Guan-Yu Lu ◽

Bin Chen ◽

Wei-Tao Wu ◽

...

Keyword(s):

Drag Force ◽

Droplet Diameter ◽

Radial Distance ◽

Droplet Evaporation ◽

Nozzle Diameter ◽

Force Model ◽

Straight Tube ◽

Single Droplet ◽

Spray Characteristics ◽

Two Phase

Drag force plays an important role in determining the momentum, heat and mass transfer of droplets in a flashing spray. This paper conducts a comparative study to examine the performance of drag force models in predicting the evolution of droplet evaporation for R134a single droplet and spray characteristics for its flashing spray. The study starts from single moving R134a droplet vaporizing in atomispheric environment, to a fully turbulent, flashing spray caused by an accidental release of high-pressure R134a liquid in the form of a straight-tube nozzle, using in-house developed code and a modified sprayFoam solver in OpenFOAM, respectively. The effect of the nozzle diameter on the spray characteristics of R134a two-phase flashing spray is also examined. The results indicate that most of the drag force models have little effect on droplet evporation in both single isolated droplet modelling and fully two-phase flashing spray simulation. However, the Khan–Richardson model contributes to different results. In particular, it predicts a much different profile of the droplet diameter distribution and a much lower droplet temperature in the radial distance. The nozzle diameter has a significant impact on the flashing spray. A smaller diameter nozzle leads to more internse explosive atomization, shorter penetration distance, lower droplet diameter and velocity, and a faster temperature decrease.

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