A comparative thermal case study on thermophysical aspects in thermally magnetized flow regime with variable thermal conductivity. (April 2023)

• Record Type: Journal Article
• Authors: Rehman, Khalil Ur; Shatanawi, Wasfi; Firdous, Uroosa
• Is Part Of: Case studies in thermal engineering. Volume 44(2023)
• Publication Date: 2023-04
• Subjects: Heat transfer -- Thermal radiations -- Variable thermal conductivity -- Mixed convection -- Heat generation -- Numerical scheme; Heat engineering -- Case studies -- Periodicals; 621.40205
• DOI: 10.1016/j.csite.2023.102839
• Languages: English
• ISSNs: 2214-157X

Abstract

Abstract: It is well consensus among researchers affiliated with the field of thermal engineering that the thermophysical characteristics of heat transfer in fluid science own abundant applications like thermal distillation systems, heat exchangers, steam-electric power generation, electronic cooling, solar collectors, refrigeration systems and spacecraft thermal protection are to mention just a few. Considering such importance we offer a thermal case study on thermophysical aspects in a thermally magnetized non-Newtonian fluid along with a first-order chemical reaction effect. The flow field is carried with the following thermophysical effects namely, mixed convection, heat generation, viscous dissipation, thermal radiations, and temperature-dependent variable thermal conductivity. We have offered comparative analysis for temperature and Nusselt number by considering thermally radiative and non-radiative thermal flow fields. The thermal outcomes on temperature and Nusselt number are also reported for both the absence and presence of the heat generation effect. For both radiative and non-radiative Casson flow, the temperature shows an inciting nature towards Casson and variable thermal conductivity parameters. The magnitude of the Nusselt number towards Eckert, Prandt numbers, curvature, heat generation, and Casson fluid parameters is higher for the presence of thermal radiations while the opposite is the case for positive variation in the thermal conductivity parameter.