NUMERICAL INVESTIGATIONS OF THE THERMO-HYDRAULIC CHARACTERISTICS FOR TURBULENT FLOW CHANNEL WITH QUADRUPLE PLAIN AND MODIFIED TWISTED TAPES INSERTS

Authors

  • Muna Sabah Kassim Mechanical Engineering Department, Mustansiriyah University, Baghdad, Iraq Author
  • Fouad Alwan Saleh Mechanical Engineering Department, Mustansiriyah University, Baghdad, Iraq Author
  • Saud Tameem Taher Mechanical Engineering Department, Mustansiriyah University, Baghdad, Iraq Author

Keywords:

Multiple Twisted Tapes, Quadruple Inserts, Heat Transfer Enhancement, Core Flow, Multi-Longitudinal Vortices

Abstract

A numerical analysis aiming to gain an understanding of the physical behavior for thermal and fluid flow attributes in tubes fitted with quadruple plain and modified twisted tape inserts (which all occupy an equal volume) for the turbulent Reynolds number range (5,000 to 20,000) is carried out. The tube inserted with quadruple modified twisted tapes showed better thermal enhancement when compared with plain tube and tubes induced with quadruple plain twisted tapes. The simulation included modification on tapes as cuts with; a circular, half-circle on the side, triangular and rhomboidal shapes. The obtained results showed a maximum increase of 31.12% is observed in the Nusselt number by using tube fitted with quadruple circular cuts twisted tapes inserts than that observed with the plain tube. And the higher friction factor obtained of the tube fitted with quadruple circular cuts twisted tapes inserts are up to 32.65% than that of the plain tube.

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Published

2018-09-01

Issue

Vol. 22 No. 5 (2018): Journal of Engineering and Sustainable Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
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How to Cite

NUMERICAL INVESTIGATIONS OF THE THERMO-HYDRAULIC CHARACTERISTICS FOR TURBULENT FLOW CHANNEL WITH QUADRUPLE PLAIN AND MODIFIED TWISTED TAPES INSERTS. (2018). Journal of Engineering and Sustainable Development, 22(5), 19-32. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/395

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