3D numerical analysis on mechanisms of flow and heat transfer in a square channel with right triangular wavy surfaces
- Autores: Jedsadaratanachai W.1, Boonloi A.2
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Afiliações:
- King Mongkut’s Institute of Technology Ladkrabang
- King Mongkut’s University of Technology North Bangkok
- Edição: Volume 25, Nº 3 (2018)
- Páginas: 387-404
- Seção: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217579
- DOI: https://doi.org/10.1134/S0869864318030071
- ID: 217579
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Resumo
Numerical investigations on thermo-hydraulic performance and mechanisms of flow and heat transfer in a square channel heat exchanger inserted with right triangular wavy surfaces are examined. The influence of the flow attack angles (30°, 45° and 60°) is investigated for laminar flow (Re = 100–2000). The configurations of the right triangular wavy surfaces are varied as inclined and V-shaped wavy surfaces (the pointing of V-tip with downstream and upstream called “V-downstream” and “V-upstream”, respectively). The insertions of the wavy surfaces in the channel heat exchanger are divided into two types: middle and diagonal insertions. The computational results reveal that the maximum thermal enhancement factor, TEF, is around 2.31 for the 30° V-downstream wavy surface with diagonal insertion at Re = 2000.
Sobre autores
W. Jedsadaratanachai
King Mongkut’s Institute of Technology Ladkrabang
Email: amnartb@kmutnb.ac.th
Tailândia, Bangkok
A. Boonloi
King Mongkut’s University of Technology North Bangkok
Autor responsável pela correspondência
Email: amnartb@kmutnb.ac.th
Tailândia, Bangkok