Free Convection Boundary Layer Flow from a Vertical Truncated Cone in a Hybrid Nanofluid

• Published in: Malaysian Journal of Fundamental and Applied Sciences
• Main Author: Mohamed M.K.A.; Ishak A.; Pop I.; Mohammad N.F.; Soid S.K.
• Format: Article
• Language: English
• Published: Penerbit UTM Press 2022
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85132114038&doi=10.11113%2fmjfas.v18n2.2410&partnerID=40&md5=6e5eda48adb8e40a3eb951bcc6a920ab

The present study investigates the mathematical model of free convection boundary layer flow from a vertical truncated cone immersed in Cu/water nanofluid and Al2O3-Cu/water hybrid nanofluid. The governing non-linear equations are first transformed to a more convenient set of partial differential equations before being solved numerically using the Keller-box method. The numerical values for the reduced Nusselt number and the reduced skin friction coefficient are obtained and illustrated graphically as well as temperature profiles and velocity profiles. Effects of the alumina Al2O3 and copper Cu nanoparticle volume fraction for hybrid nanofluid are analyzed and discussed. It is found that the high-density and highly thermal conductivity nanoparticles like copper contributed more in skin friction and convective heat transfer capabilities. The appropriate nanoparticles combination in hybrid nanofluid may reduce the friction between fluid and surface but yet still gave the heat transfer capabilities comparable to metal nanofluid. © Copyright Mohamed et al.