Turbulence Modulation by Small Bubbles in the Vertical Upward Channel Flow-Reference-Cited by-同舟云学术

Turbulence Modulation by Small Bubbles in the Vertical Upward Channel Flow

Published:2013-01 Issue: Volume:5 Page:379839
ISSN:1687-8140
Container-title:Advances in Mechanical Engineering
language:en
Short-container-title:Advances in Mechanical Engineering

Author:

Pang Mingjun¹²,Wei Jinjia¹,Yu Bo³

Affiliation:

1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China

2. School of Mechanical Engineering, Changzhou University, Changzhou 213016, China

3. Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, China

Abstract

The liquid turbulence modulation by small bubbles was investigated detailedly in a vertical upward channel flow with a finite number of small bubbles with the developed Eulerian-Lagrangian method. Small bubbles are treated as pointwise spheres subject to gravity, drag, added mass, pressure gradient, lift, and wall lift forces. The momentum transfer between phases was realized through interphase forces. The present investigation shows that the liquid turbulence is intensified near the wall and is slightly weakened in the channel central region due to the bubble addition. The turbulence modulation mechanisms by bubbles were also analyzed in the paper.

Funder

National Natural Science Foundation of China

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1155/2013/379839

Reference23 articles.

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5. Theoretical approach on the turbulence intensity of the carrier fluid in dilute two-phase flows

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