Research Article Open Access

Flow and Heat Transfer Profiles in a Square Channel with 45° V-Downstream Orifices

Withada Jedsadaratanachai1 and Amnart Boonloi2
  • 1 King Mongkut’s Institute of Technology Ladkrabang, Thailand
  • 2 King Mongkut’s University of Technology North Bangkok, Thailand

Abstract

Flow and heat transfer profiles in a square channel heat exchanger inserted with 45° V-orifices are presented. The influences of Reynolds number (Re = 3000-10,000) and blockage ratio (BR = 0.05, 0.10, 0.15, 0.20 and 0.25) on periodic concepts are investigated numerically. The computational domain is solved with the finite volume method and SIMPLE algorithm. As the numerical results, the periodic profiles on flow and heat transfer are found when inserted the 45° V-orifices in the square duct. The configurations on flow and heat transfer in the heating section can separated into two sections; periodic profile and fully developed periodic profile. The patterns on flow and heat transfer are similar, but the values are not equal, called "periodic profiles", while the identical on both profiles and values, called "fully developed periodic profiles". In addition, the periodic structures depends on the parameters of the vortex generator, position in the channel and Reynolds number.

Journal of Mathematics and Statistics
Volume 12 No. 4, 2016, 277-289

DOI: https://doi.org/10.3844/jmssp.2016.277.289

Submitted On: 5 October 2016 Published On: 18 November 2016

How to Cite: Jedsadaratanachai, W. & Boonloi, A. (2016). Flow and Heat Transfer Profiles in a Square Channel with 45° V-Downstream Orifices. Journal of Mathematics and Statistics, 12(4), 277-289. https://doi.org/10.3844/jmssp.2016.277.289

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Keywords

  • Periodic Boundary
  • V-Orifice
  • Turbulent Flow
  • Numerical Investigation
  • Heat Exchanger