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Mathematical Problems in Engineering
Volume 2016, Article ID 6146195, 7 pages
Research Article

CFD Study of Liquid Sodium inside a Wavy Tube for Laminar Convectors: Effect of Reynolds Number, Wave Pitch, and Wave Amplitude

1Department of Mechanical Engineering, NED University of Engineering & Technology, Karachi, Pakistan
2Department of Nuclear Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
3Department of Mechatronics Engineering, Jeju National University, Jeju, Republic of Korea

Received 8 May 2016; Revised 25 September 2016; Accepted 12 October 2016

Academic Editor: Efstratios Tzirtzilakis

Copyright © 2016 Syed Murtuza Mehdi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Metallic tubes have been widely used as primary heat transfer elements in laminar convectors for domestic and aerospace heating purpose. This paper uses CFD tool to investigate the heat output and pressure drop of liquid sodium flowing inside a circular tube having a wavy profile throughout its length. The wavy tube can be utilized in laminar liquid metal convectors as basic heat transfer element. The effect of Reynolds number () wave pitch () and wave amplitude () on the heat output and pressure drop has been numerically studied. Based on the CFD results important controlling parameters have been identified and it is concluded that the heat output from the wavy tube is affected by the wave pitch and the wave amplitude while the pressure drop is mostly affected by the Reynolds number and wave amplitude.