TY - JOUR
T1 - Thermo-Hydraulic Performance of Pin-Fins in Wavy and Straight Configurations
AU - Saghir, Mohamad Ziad
AU - Rahman, Mohammad Mansur
N1 - Funding Information:
Funding: The funding of this research is from the National Science and Engineering Council Canada (NSERC) and the Sultan Qaboos University for funding through the research grant IG/SCI/MATH/20/03.
Funding Information:
Acknowledgments: We would like to thank the anonymous referees for their valuable comments for the further improvement of the paper. M.Z.S. is grateful to National Science and Engineering Council Canada (NSERC), M.M.R. is grateful to Sultan Qaboos University for funding through the research grant IG/SCI/MATH/20/03.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/6
Y1 - 2022/6
N2 - Pin-fins configurations have been investigated recently for different engineering applications and, in particular, for a cooling turbine. In the present study, we investigated the performance of three different pin-fins configurations: pin-fins forming a wavy mini-channel, pin-fins forming a straight mini-channel, and a mini-channel without pin-fins considering water as the working fluid. The full Navier–Stokes equations and the energy equation are solved numerically using the finite element technique. Different flow rates are studied, represented by the Reynolds number in the laminar flow regime. The thermo-hydraulic performance of the three configurations is determined by examining the Nusselt number, the pressure drop, and the performance evaluation criterion. Results revealed that pin-fins forming a wavy mini-channel exhibited the highest Nusselt number, the lowest pressure drop, and the highest performance evaluation criterion. This finding is valid for any Reynolds number under investigation.
AB - Pin-fins configurations have been investigated recently for different engineering applications and, in particular, for a cooling turbine. In the present study, we investigated the performance of three different pin-fins configurations: pin-fins forming a wavy mini-channel, pin-fins forming a straight mini-channel, and a mini-channel without pin-fins considering water as the working fluid. The full Navier–Stokes equations and the energy equation are solved numerically using the finite element technique. Different flow rates are studied, represented by the Reynolds number in the laminar flow regime. The thermo-hydraulic performance of the three configurations is determined by examining the Nusselt number, the pressure drop, and the performance evaluation criterion. Results revealed that pin-fins forming a wavy mini-channel exhibited the highest Nusselt number, the lowest pressure drop, and the highest performance evaluation criterion. This finding is valid for any Reynolds number under investigation.
KW - friction factor
KW - performance criterion
KW - pin-fins
KW - pressure drop
KW - wavy pin-fins channel
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U2 - 10.3390/mi13060954
DO - 10.3390/mi13060954
M3 - Article
C2 - 35744569
AN - SCOPUS:85132546388
SN - 2072-666X
VL - 13
JO - Micromachines
JF - Micromachines
IS - 6
M1 - 954
ER -