Irreversibility analysis for peristaltic transport flow of a Phan–Thien–Tanner nanofluid past an asymmetric channel with Lorentz forces

Recent research has shown that copper nanoparticles can cure and even eradicate the most severe disease called cancer. Due to their large atomic number and massive heat output, these particles are useful in the treatment of malignant tumors. Given this research, this work aims to present the findings from an intensive study on the peristaltic transport of Phan–Thien–Tanner fluid driven by the Lorentz phenomenon carrying the nanoparticles of copper in an asymmetric channel, with a focus on the entropyanalysis and therapeutic implementation. Considering the case of long wavelengths, low Reynolds numbers, heat radiation, and Hall effects, the double‐diffusive convection of the Phan–Thien–Tanner MHD peristaltic flow with thermophoresis and Brownian motion of copper nanoparticles is studied. The governing equation is non‐dimensionalized, utilizing parameters with no dimensions. By employing the perturbation method, the model's governing equations are solved. It is important to note that the velocity of the fluid is presumed to be affected by the magnetic field. Also, the nanofluid's thermophoresis parameter increases the temperature of the fluid. Therefore, to transport drugs and treat cancer, magnetic fields and nanoparticles are used. The Hall parameter increases the flow characteristics of the fluid, while the Weissenberg number shows dissimilar behaviors. Furthermore, the present study is checked with the previous work via the plot, indicating that the two reports accord well.