Experimental Observations on Wake Characteristics of a Rising Bubble in a Vertical Narrow Rectangular Channel-Reference-Cited by-同舟云学术

Experimental Observations on Wake Characteristics of a Rising Bubble in a Vertical Narrow Rectangular Channel

Published:2015-03-24 Issue:2 Volume:1 Page:
ISSN:2332-8983
Container-title:Journal of Nuclear Engineering and Radiation Science
language:en
Short-container-title:

Author:

Song Mingliang¹²,Huang Yanping¹²,Zhang Liqin¹²,Wang Junfeng¹²,Zan Yuanfeng¹²

Affiliation:

1. CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu 610041, PR China;

2. National Energy R&D Center of Pressurized Water Reactor Technology, Nuclear Power Institute of China, Chengdu 610041, PR China e-mail:

Abstract

Wake characteristics of a rising air and vapor bubble through stagnant and flowing deionized water in a vertical narrow rectangular channel were investigated using particle image velocimetry (PIV). Influence of inlet average fluid velocity on bubble behavior was discussed. The results showed that relative terminal velocities of air bubble under different inlet average fluid velocities were almost equal to the terminal velocity in stagnant fluid, and terminal rising velocities of single air bubble and vapor bubble are very close under adiabatic boundary condition. As flow velocity increased, wake structure simplified. Disturbances in the wake of the vapor bubble were more noticeable.

Publisher

ASME International

Subject

Nuclear Energy and Engineering,Radiation

Link

http://asmedigitalcollection.asme.org/nuclearengineering/article-pdf/doi/10.1115/1.4029339/6065809/ners_1_2_021004.pdf

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