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Investigating the impacts of included angles on flow and heat transfer in cross-corrugated triangular ducts with field synergy principle
Guangdong University of Education, Guangzhou, China.
South China University of Technology.
Mälardalen University, School of Business, Society and Engineering.
2013 (English)In: Thermal Science, ISSN 0354-9836, E-ISSN 2334-7163, Vol. 17, no 3, p. 823-832Article in journal (Refereed) Published
Abstract [en]

Included angles (a) have vital effect on the flow and heat transfer in cross-corrugated triangular ducts. The friction factor and Nusselt number were estimated at different Reynolds numbers from both experiments and simulations. Results show that the flow in the duck with a = 90° has the largest friction factor and Nusselt number. However, the included angle influences the flow and heat transfer in cross-corrugated triangular ducts in different ways. The field synergy principle was used to explore the mechanism of the different impacts of the included angle. Results show that the flow in the cross-corrugated triangular duct with a = 90° has the smallest domain averaged included angle (bm), which implies the best synergy performance. The results of the field synergy principle were also validated by analyzing the performance evaluation criterion and studying the velocity vector and temperature distributions.

Place, publisher, year, edition, pages
2013. Vol. 17, no 3, p. 823-832
Keywords [en]
cross-corrugated triangular channel, Field synergy principle, Iincluded angle
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-22816DOI: 10.2298/TSCI110628127CISI: 000323913100034Scopus ID: 2-s2.0-84886777072OAI: oai:DiVA.org:mdh-22816DiVA, id: diva2:664606
Available from: 2013-11-15 Created: 2013-11-15 Last updated: 2017-12-06Bibliographically approved

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Citation style
  • apa
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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