Published December 2015 | Version v1
Journal article Metadata-only

Comparative investigation on wake characteristics of an vapor and air bubble rising in a vertical narrow rectangular channel

Creators

  • 1. CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institution of China, Chengdu (China)

Description

Wake characteristics of a single vapor bubble rising in a vertical narrow rectangular channel were studied by PIV, and the effects of bubble diameter and inlet average fluid velocity on bubble rising velocity, wake structure and velocity profile were analyzed. In addition, wake characteristic of single vapor bubbles was compared with that of single air bubbles. Results showed that the terminal rising velocity of vapor bubbles as function of the bubble diameter was a little different from that of air bubbles. Effects of bubble diameter and inlet average velocity on the wake and position with maximum longitudinal velocity in the wake were all similar to that of air bubbles. (authors)

Additional details

Identifiers

DOI
10.13832/j.jnpe.2015.06.0037;

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
36
Journal Issue
6
Journal Page Range
p. 37-40
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
50036246
Subject category
S42: ENGINEERING;
Descriptors DEI
AIR; BUBBLES; COMPARATIVE EVALUATIONS; RISE; THERMAL HYDRAULICS; TWO-PHASE FLOW; VAPORS; VELOCITY
Descriptors DEC
EVALUATION; FLUID FLOW; FLUID MECHANICS; FLUIDS; GASES; HYDRAULICS; MECHANICS; MODIFIED IN-SITU PROCESSES

Optional Information

Notes
6 figs., 1 tab., 11 refs.; http://dx.doi.org/10.13832/j.jnpe.2015.06.0037