Abstract
We study numerically the thermo-hydraulic characteristics for forced convective flow of Cu-water nanofluid within a corrugated channel of different corrugated profiles namely triangular, sinusoidal and trapezoidal incorporated with single-layer aluminium porous foam at the core. The results are elaborated in terms of the streamline and isotherm distribution and variation of averaged Nusselt number, enhancement ratio and performance factor, for a range of Reynolds number (5–500) and nanofluid volume fraction (0–5%) at Darcy number = 10−6. Results indicate that the mixing capability between the hot and cold fluid enhanced and hence the heat transfer rate increases upon the introduction of the corrugated wall in a partially filled porous channel. Moreover, trapezoidal corrugated channel shows better heat transfer augmentation as compared to its counterparts namely sinusoidal and triangular ones. The combined effect of enhancement in heat transfer and pressure drop penalty of the corrugated channel is presented by performance factor, which is strongly dependent upon the Reynolds number and the profile of the corrugated channel. In nutshell, trapezoidal corrugated channel found to be the best irrespective of Reynolds number and nano-fluid volume fraction.
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: International Communications in Heat and Mass Transfer
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.
