Submit

Login Login

Register Register

Home / Journals / FDMP / Online First / doi:10.32604/fdmp.2024.049510
Journal Menu
Special Issues
Table of Content

All issues

Online First

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Open Access

ARTICLE

A Novel Model for the Prediction of Liquid Film Thickness Distribution in Pipe Gas-Liquid Flows

Yubo Wang1,2,*, Yanan Yu1,2, Qiming Wang3, Anxun Liu3
1 School of Thermal Engineering, Shandong Jianzhu University, Jinan, 250101, China
2 Shandong Technology Innovation Center of Carbon Neutrality, Shandong Jianzhu University, Jinan, 250101, China
3 Weihai Haihe Technology Co., Ltd., Weihai, 264200, China
* Corresponding Author: Yubo Wang. Email: email

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.049510

Received 09 January 2024; Accepted 22 April 2024; Published online 29 May 2024

Abstract

A model is proposed for liquid film profile prediction in gas-liquid two-phase flow, which is able to provide the film thickness along the circumferential direction and the pressure gradient in the flow direction. A two-fluid model is used to calculate both gas and liquid phases’ flow characteristics. The secondary flow occurring in the gas phase is taken into account and a sailing boat mechanism is introduced. Moreover, energy conservation is applied for obtaining the liquid film thickness distribution along the circumference. Liquid film thickness distribution is calculated accordingly for different cases; its values are compared with other models and available experimental data. As a result, the newly proposed model is tested and good performances are demonstrated. The liquid film thickness distribution in small pipes and inclined pipes is also studied, and regime transition is revealed by liquid film profile evolution. The observed inflection point demonstrates that the liquid film thickness decreases steeply along the circumference, when the circle angle ranges between 30° and 50° for gas-liquid stratified flow with small superficial velocities.

Keywords

Film thickness; secondary flow; void fraction; pressure gradient; regime transition

  • 180

    View

  • 26

    Download

  • 0

    Like

Related articles
Copyright© 2024 Tech Science Press
© 1997-2024 TSP (Henderson, USA) unless otherwise stated

Share Link