The mechanical aspects of bidirectional stretching on thermal performance in Burgers nanofluid flow subject to ohmic heating and chemical reaction

• Published in: Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering Journal of process mechanical engineering, 2021-08, Vol.235 (4), p.1150-1163
• Main Authors: Iqbal Zahoor, Khan, Masood, Ahmed, Awais, Ullah Malik Zaka
• Format: Article
• Language: English
• Subjects: Chemical reactions; Computational fluid dynamics; Flow velocity; Fluid flow; Graphical representations; Heat transfer; Heat transmission; Heating; Mass transport; Mathematical models; Nanofluids; Parameters; Relaxation time; Stretching; Thermal relaxation; Three dimensional flow; Transport phenomena; Viscoelasticity
• ISSN: 0954-4089; 2041-3009
• DOI: 10.1177/0954408921999613

Thermal transport in 3D flow of Burgers nanofluid due to bidirectional stretching is an interesting topic with large number of applications. Motivated by this fact we formulated mathematical modelling for the 3D flow of viscoelastic Burgers nanofluid accelerated by bidirectional stretching surface. We studied the fluid relaxation and retardation time effects on the momentum and thermal transport of Burgers fluid. Moreover, we considered the effects of heat rise/fall and Ohmic heating to analyze the heat transport features in the flow of viscoelastic nanofluid. A momentous feature of this study is to incorporate the thermal relaxation time phenomenon to observe the properties of heat flow in nanofluid. Additionally, the mass transport phenomenon is explored by employing modified mass flux model and chemical reaction effects. Results are attained by employing homotopy analysis method (HAM) and illustrated through graphical representation. The main finding of the study exposes that the thermal transport in the flow is accelerated due to building strength of Eckert number ( 0.1 ≤ E c 1 ≤ 1.5 ) . Moreover, the depreciating trend of concentration profiles is being detected for building strength of constructive chemical reaction parameter ( 0.1 ≤ K ≤ 0.9 ) . Also, it is seen that the escalating magnitude of thermal relaxation time parameter ( 0.1 ≤ β t ≤ 2.0 ) serves to decline the heat flow rate.