Abstract
In this study, hydrodynamically and thermally developing laminar flow and heat transfer in a rectangular cross-sectional duct have been numerically investigated for steady state and constant surface temperature boundary condition. Numerical solutions have been made for three different aspect ratios (α=0.25, 0.50 and 1.0) and in the Reynolds numbers range of 600 to 2000. Air (Pr0.72) is used as working fluid. A commercial CFD program ANSYS Fluent 13.0 has been employed to carry out the numerical study. Results are given in terms of Nusselt number Nu, Darcy friction factor f, hydrodynamic Lhd and thermal entrance Lth lengths as a function of Reynolds number Re. Also, velocity and temperature contours in the duct are given for different Reynolds numbers. It is seen that the general equation given for circular ducts does not give a true hydrodynamic and thermal entrance length for rectangular ducts. The present results obtained from numerical study are correlated as a function of aspect ratio and Reynolds number involving all aspect ratios and Reynolds numbers used in this study
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
