Flow towards a stagnation region of a vertical plate in a hybrid nanofluid: assisting and opposing flows

• Main Authors: Ishak, Anuar, Waini, Iskandar, Pop, Ioan
• Format: Article
• Language: English
• Published: MDPI AG 2021
• Online Access: http://eprints.utem.edu.my/id/eprint/25932/2/WAINI2021%20MATHEMATICS%20VERTICAL%20PLATE%201.PDF; http://eprints.utem.edu.my/id/eprint/25932/; https://www.mdpi.com/2227-7390/9/4/448; https://doi.org/10.3390/math9040448

This study investigates a hybrid nanofluid flow towards a stagnation region of a vertical plate with radiation effects. The hybrid nanofluid consists of copper (Cu) and alumina (Al2O3) nanoparticles which are added into water to form Cu-Al2O3/water nanofluid. The stagnation point flow describes the fluid motion in the stagnation region of a solid surface. In this study, both buoyancy assisting and opposing flows are considered. The similarity equations are obtained using a similarity transformation and numerical results are obtained via the boundary value problem solver (bvp4c) in MATLAB software. Findings discovered that dual solutions exist for both opposing and assisting flows. The heat transfer rate is intensified with the thermal radiation (49.63%) and the hybrid nanoparticles (32.37%).