Nonlinear thermal radiation and activation energy significances in slip flow of bioconvection of Oldroyd-B nanofluid with Cattaneo-Christov theories

• Main Authors: Zhao-Wei Tong, Sami Ullah Khan, Hanumesh Vaidya, Rajashekhar Rajashekhar, Tian-Chuan Sun, M. Ijaz Khan, K.V. Prasad, Ronnason Chinram, Ayman A. Aly
• Format: Article
• Language: English
• Published: Elsevier 2021-08-01
• Series: Case Studies in Thermal Engineering
• Subjects: Oldroyd-B nanofluid; Slip effects; Activation energy; Bioconvection flow; Cattaneo-Christov model
• Online Access: http://www.sciencedirect.com/science/article/pii/S2214157X2100232X

Recently, nanofluids are an effective source of enhancing the thermal transportation systems associated with industrial and engineering phenomena. With the nanoscale size and effective thermal properties, the nanomaterials convey exclusive beneficial applications in heat exchanges, coolant processes, medical treatment, electronic cooling systems, energy production, etc. Keeping all such motivating significances of nanoparticles in mind, this research presents the thermal aspects of Oldroyd-B nanofluid with applications of bioconvection phenomenon over a convectively heated configuration when the slip effects are more dominant. The bio-convective nanofluid model is further extended by incorporating the thermal radiation relations in nonlinear form and activation energy. The modifications in heat and mass equations are suggested in view of modified Cattaneo-Christov theories. The magnetic force and porous medium applications are also entertained. The convective conditions are imposed on accessing the flow dynamically. The numerical simulations via shooting technique by using MATLAB software are performed with convincing solution accuracy. The physical objective in view of all parameters that govern the flow model is presented in graphs and tables. The obtained theoretical results reflects applications in thermal extrusion processes, power plants, enhancing the heat/mass process, information technology, chemical processes, pharmacological processes, cooling and heating systems, solar energy production, bio-technolgy applications like enzymes, biofules etc.