Computational modeling of heat transfer from a horizontal array of cylinders for low Reynolds Numbers
Khan, Ovais U. Arshed, Ghulam Murshed Raza, Syed A. Ali, Haider
Khan, Ovais U.
Arshed, Ghulam Murshed
Raza, Syed A.
Ali, Haider
Citations
Altmetric:
Other Names
Location
Time Period
Advisors
Original Date
Digitization Date
Issue Date
2025-01-03
Type
Conference paper
Genre
Keywords
Subjects (LCSH)
Citation
Ovais U. Khan, Ghulam Arshed, Syed A. Raza and Haider Ali. "Computational Modeling of Heat Transfer from a Horizontal Array of Cylinders for Low Reynolds Numbers," AIAA 2025-1227. AIAA SCITECH 2025 Forum. January 2025.
Abstract
A numerical model based on the computational fluid dynamics (CFD) approach was developed to investigate heat transfer from a horizontal row of circular cylinders in a tandem, side-by-side arrangement. The study involved solving momentum and energy equations using the finite volume method, with convective terms discretized using a second-order upwind method and diffusion terms discretized using central differencing. A second-order implicit technique was used to integrate the temporal term. The numerical simulations were run with various values of free stream Reynolds number and dimensionless longitudinal pitch ratio. The numerical results were compared with analytical findings from the literature and found in good agreement for low values of free stream Reynolds number. The maximum percentage error between the average Nusselt number obtained from the numerical and analytical solutions was less than 20% for larger free-stream Reynolds numbers; however, it decreased to less than 2% as the free-stream Reynolds number decreased. The good agreement between the two models at low free-stream Reynolds numbers suggests that the CFD model is valid in this range and can be used to study similar fluid flow and heat transfer problems. The information generated would be useful in the design of more efficient fluid systems involving arrays of cylinders. © 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
Table of Contents
Description
Click on the DOI link to access this article at the publishers website (may not be free).
Publisher
American Institute of Aeronautics and Astronautics Inc, AIAA
Journal
Book Title
Series
AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025. 6 January 2025 through 10 January 2025. Orlando. 325579