Irreversibility analysis for the modified viscous fluid in the presence of viscous dissipation

Studies to control irreversibility or entropy generation in fluid flow models have attracted the attention of scientists over the past few decades. Current study analyzes both theoretically and numerically, the contribution of thermophysical properties, viscous dissipation and solar radiation in heat transfer of a fluid flow induced by a heated flat plate. The system includes steady boundary layer flow of modified viscous fluid where viscosity is totally dependent on temperature profiles. The remaining fluid properties are assumed to be variable. Energy equation consists of solar radiative heat flux and viscous dissipation effects. The governing equations are converted into a system of ordinary differential equations by similarity variable approach. Numerical solutions are performed by using RK-five integator method with shooting technique. Analysis of mean-flow and entropy profiles with physical reasoning of the problem through tables and figures are given in the last section. Study concludes that concentration ratio variable ������2 positively affects the irreversibility of system.

Automated summary

In the past few decades, studies on controlling irreversibility or entropy generation in fluid flow models have been of interest to scientists. This study analyzes the contribution of thermophysical properties, viscous dissipation, and solar radiation in the heat transfer of a fluid flow induced by a heated flat plate, both theoretically and numerically. The system consists of steady boundary layer flow of modified viscous fluid with temperature-dependent viscosity. Other fluid properties are assumed to be variable. The energy equation includes solar radiative heat flux and viscous dissipation effects. The governing equations are transformed into a system of ordinary differential equations using a similarity variable approach. Numerical solutions are obtained using the RK-five integator method with the shooting technique. The analysis of mean-flow and entropy profiles, along with physical reasoning, is presented in the last section. The study concludes that the concentration ratio variable has a positive effect on the irreversibility of the system.