Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A study on steam-water two phase flow distribution in a rectangular channel with different channel orientations
KTH. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Power Safety.
2018 (English)In: Experimental Thermal and Fluid Science, ISSN 0894-1777, E-ISSN 1879-2286, Vol. 99, p. 219-232Article in journal (Refereed) Published
Abstract [en]

Experimental study on steam-water two phase vertical and inclined upward flow (15–90°) was performed in a rectangular channel with cross section of 17 mm × 10 mm under atmospheric pressure to investigate the phase distribution and the average void fraction in the cross section which were obtained from the local void fraction measurement by a conductivity probe. The inlet superficial velocities of the steam and water varied from 0.72 to 3.85 m/s and from 0.11 to 0.3 m/s respectively. A high speed camera was used to identify the flow patterns. Experimental results show that the phase distribution curves are significantly affected by channel orientation and the average void fraction first decreases and then increases with the increase of orientation. Based on the drift-flux model, two parameters, namely, the distribution parameter (C0) and the drift velocity (Ugm) have been studied in detail. Both the distribution parameter and the drift velocity are found to be functions of orientation. The distribution parameter decreases with the increase of orientation while the drift velocity first increases and then decreases with the increase of orientation., Based on the experimental data, an improved drift-flux model is proposed especially for the slug and churn flow, which predicts the void fraction in an inclined channel with good accuracy.

Place, publisher, year, edition, pages
Elsevier Inc. , 2018. Vol. 99, p. 219-232
Keywords [en]
Distribution parameter, Drift velocity, Orientation, Rectangular channel, Void fraction, Atmospheric pressure, Crystal orientation, High speed cameras, Steam, Velocity, Average void fraction, Channel orientations, Distribution parameters, Drift velocities, Local void fraction, Steam water two phase flow, Superficial velocity, Two phase flow
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-236570DOI: 10.1016/j.expthermflusci.2018.07.022ISI: 000446146600019Scopus ID: 2-s2.0-85051040996OAI: oai:DiVA.org:kth-236570DiVA, id: diva2:1266049
Note

Export Date: 22 October 2018; Article; CODEN: ETFSE; Correspondence Address: Gong, S.; School of Nuclear Science and Engineering, Shanghai Jiao Tong UniversityChina; email: gsj@sjtu.edu.cn; Funding details: 51306112, NSFC, National Natural Science Foundation of China; Funding text: This work was supported by the National Natural Science Foundation of China (Grant No. 51306112 ). QC 20181127

Available from: 2018-11-27 Created: 2018-11-27 Last updated: 2018-11-27Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Ma, Weimin

Search in DiVA

By author/editor
Gong, ShengjieMa, Weimin
By organisation
KTHNuclear Power Safety
In the same journal
Experimental Thermal and Fluid Science
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf