Thermal radiation and permeability effects in thermal transportation of Maxwell hybrid nanofluid flow with irreversibility optimization

Abstract

Entropy generation(EG) has attracted the attention of scientists and researchers worldwide due to its applications in the industrial and engineering sectors. Applications of entropy generation can be seen in chillers, air conditioners, air separates, air coolers, nuclear reactors, and vehicle engines. In the current investigation, we have analyzed entropy generation in Maxwell hybrid nanofluid(HNF) flow over a porous stretching sheet. Darcy Forchheimer(DF) relation is considered. Due to stretching of sheet flow generates. The thermal expression is reported taking influences of dissipation, radiation, and heat source. The second law of thermodynamics is utilized to obtain EG for considered flow. Boundary layer assumptions are considered in the modeling. Partial differential equations(PDEs) governing the flow are changed into dimensionless ordinary differential equations(ODEs) through transformations. The solution of reduced ODEs is constructed via NDSolve code in Mathematica software. Different influential flow variables impact on velocity, temperature, irreversibility, and Bejan number are discussed graphically. Physical quantities are examined numerically. The results show that velocity diminished for rising porosity and Forchheimer variables. Temperature field upsurges for an upturn in radiation and Eckert numbers, an opposite impact is noticed for higher Prandtl number. EG escalates for greater radiation, temperature, and Brinkman variables.

Keywords

• Entropy generation
• Heat source
• Maxwell hybrid nanoliquid
• Thermal radiation
• Bejan number