Magneto-Thermo-Marangoni convective flow of Cu-H2O nanoliquid past an infinite disk with particle shape and exponential space based heat source effects

• Published in: Results in physics Vol. 7; pp. 2990 - 2996
• Main Authors: Mahanthesh, B., Gireesha, B.J., Prasannakumara, B.C., Sampath Kumar, P.B.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2017; Elsevier
• Subjects: Disk flow; Exponential space dependent heat source; Joule heating; Magnetohydrodynamics; Marangoni convection; Nanofluid; Exponential space dependent heat source; Magnetohydrodynamics; Nanofluid; Marangoni convection; Joule heating; Disk flow
• ISSN: 2211-3797; 2211-3797
• DOI: 10.1016/j.rinp.2017.08.016

The exponential space dependent heat source (ESHS) process is utilized to explore the thermal transport characteristics of Marangoni convective flow in a Cu-H2O nanoliquid due to an infinite disk. Flow is driven by linear temperature. Five distinct nanoparticle shapes such as sphere, tetrahedron, column, hexahedron and lamina are accounted. Impacts of Joule heating, radiation and viscous dissipation are also retained. Hamilton-Crosser’s expression is employed to deploy effective thermal conductivity of nanoliquid. Multi degree partial differential equations system is reduced by Kármán transformations and then solved via shooting method. It is figured out that the heat transfer rate is enhanced for stronger Marangoni convection and nanoparticle volume fraction. Also, shape of the nanoparticles significantly affects the flow fields.