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Архив
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)


ISBN Онлайн: 978-1-56700-478-6

MIXED CONVECTION IN A TWO-SIDED LID-DRIVEN POROUS CAVITY SATURATED WITH NANOFLUID

DOI: 10.1615/IHMTC-2017.2310
pages 1665-1672

Soumyodeep Mukherjee
Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

Nirmalendu Biswas
Department of Mechanical Engineering, Jadavpur University Kolkata, 700032, India

Nirmal Kumar Manna
Department of Mechanical Engineering, Jadavpur University Kolkata, 700032, West Bengal, India

Аннотация

This work investigates the heat transfer performance of a two-sided lid-driven cavity filled with Cu-water nanofluid saturated porous media. The top and bottom walls are cold and translating. The sidewalls are partially heated at the middle and rest portions are insulated. A concept of speed ratio is introduced in this work to analyze the effect of different moving velocity of top and bottom walls. In-house code is used for the investigation which ranges for Richardson number (Ri = 0.1−20) and Darcy number (Da = 10-4), porosity (ε = 0.6), speed ratios (λ = -2−2), nanoparticles concentration ( = 0−0.1) keeping Reynolds number (Re = 100) fixed. The study reveals that the heat transfer rate increases with the increase of speed ratio and for all the values of the speed ratio, average Nusselt number increases.