To read the full version of this content please select one of the options below:

Eulerian–Eulerian multi-phase RPI modeling of turbulent forced convective of boiling flow inside the tube with porous medium

Reza Azadbakhti (Department of Mechanical Engineering, Aligoudarz Branch, Islamic Azad University, Aligoudarz, Iran)
Farzad Pourfattah (Department of Mechanical Engineering, University of Kashan, Iran)
Abolfazl Ahmadi (School of Mechanical Engineering, Iran University of Science and Technology, Arak, Iran)
Omid Ali Akbari (Young Researchers and Elite Club, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran)
Davood Toghraie (Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 17 July 2019

Abstract

Purpose

The purpose of this study is simulation the flow boiling inside a tube in the turbulent flow regime for investigating the effect of using a porous medium in the boiling procedure.

Design/methodology/approach

To ensure the accuracy of the obtained numerical results, the presented results have been compared with the experimental results, and proper coincidence has been achieved. In this study, the phase change phenomenon of boiling has been modeled by using the Eulerian–Eulerian multi-phase Rensselaer Polytechnic Institute (RPI) wall boiling model.

Findings

The obtained results indicate using a porous medium in boiling process is very effective in a way that by using a porous medium inside the tub, the location of changing the liquid to the vapor and the creation of bubbles, changes. By increasing the thermal conductivity of porous medium, the onset of phase changing postpones, which causes the enhancement of heat transfer from the wall to the fluid. Generally, it can be said that using a porous medium in boiling flows, especially in flow with high Reynolds numbers, has a positive effect on heat transfer enhancement. Also, the obtained results revealed that by increasing Reynolds number, the created vapor phase along the tube decreases and by increasing Reynolds number, the Nusselt number enhances.

Originality/value

In present research, by using the computational fluid dynamics, the effect of using a porous medium in the forced boiling of water flow inside a tube has been investigated. The fluid boiling inside the tube has been simulated by using the multi-phase Eulerian RPI wall boiling model, and the effect of thermal conductivity of a porous medium and the Reynolds number on the flow properties, heat transfer and boiling procedure have been investigated.

Keywords

Acknowledgements

Corrigendum: It has come to the attention of the publisher that the article Azadbakhti, R., Pourfattah, F., Ahmadi, A., Akbari, O.A. and Toghraie, D. (2019), “Eulerian–Eulerian multi-phase RPI modeling of turbulent forced convective of boiling flow inside the tube with porous medium”, published in the International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 5, pp. 2739-2757 has been found to include significant similarities to a previous publication by several of the authors, which was not referenced in this article.

The similar source is Pourfattah, F., Yousefi, S., Akbari, O.A., Adhampour, M., Toghraie, D. and Hekmatifar, M. (2019), “Numerical simulation of the effect of using nanofluid in phase change process of cooling fluid”, published in the International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 6, pp. 2913-2934. The author guidelines for International Journal of Numerical Methods for Heat & Fluid Flow state that articles must be original and fully referenced. The authors sincerely apologise for this.

Citation

Azadbakhti, R., Pourfattah, F., Ahmadi, A., Akbari, O.A. and Toghraie, D. (2019), "Eulerian–Eulerian multi-phase RPI modeling of turbulent forced convective of boiling flow inside the tube with porous medium", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 30 No. 5, pp. 2739-2757. https://doi.org/10.1108/HFF-03-2019-0194

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited