Homogeneous and heterogeneous reactions in the mixed convection flow of hybrid nanofluid over a slender cylinder

2022 ◽  
Author(s):  
Prabhugouda M. Patil ◽  
Sunil Benawadi ◽  
Jagdish R. Tonannavar ◽  
Bandari Shanker
Keyword(s):  
Mixed Convection ◽  
Heterogeneous Reactions ◽  
Convection Flow ◽  
Hybrid Nanofluid ◽  
Mixed Convection Flow ◽  
Homogeneous And Heterogeneous Reactions

Mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Natalia C. Roșca ◽  
Alin V. Roșca ◽  
Ioan Pop
Keyword(s):  
Differential Equations ◽  
Mixed Convection ◽  
Thermal Radiation ◽  
Radiation Effect ◽  
Convection Flow ◽  
Hybrid Nanofluid ◽  
Mixed Convection Flow ◽  
Content Type ◽  
Thermal Radiation Effect ◽  
Vertical Wedge

Purpose The purpose of this paper is to numerically study the problem of mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect. Design/methodology/approach The governing nonlinear partial differential equations are transformed into a system of ordinary differential equations by a similarity transformation, which is then solved numerically through the function bvp4c from MATLAB for different values of the governing parameters. The solutions contain a mixed convection parameter λ that has a considerable impact on the flow fields. Findings It is found that the solutions of the ordinary (similarity) differential equations have two branches, upper and lower branch solutions, in a certain range of the mixed convection and several other parameters. To establish which of these solutions are stable and which are not, a stability analysis has been performed. The effects of the governing parameters on the fluid flow and heat transfer characteristics are illustrated in tables and figures. It is found that dual (upper and lower branch) solutions exist for both the cases of assisting and opposing flow situations. A stability analysis has also been conducted to determine the physical meaning and stability of the dual solutions. Practical implications This theoretical study is significantly relevant to the applications of the heat exchangers placed in a low-velocity environment and electronic devices cooled by fans. Originality/value The case of mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effects has not been studied before, and hence all generated numerical results are claimed to be original and novel.

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