Entropy Analysis for Hydromagnetic Darcy–Forchheimer Flow Subject to Soret and Dufour Effects

• Published in: Mathematical and computational applications Vol. 27; no. 5; p. 80
• Main Authors: Khan, Sohail A., Hayat, Tasawar
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.10.2022
• Subjects: Approximation; chemical reaction; Chemical reactions; Darcy–Forchheimer model; Diffusion effects; Diffusion rate; Entropy; Finite difference method; finite difference technique; Heat; Investigations; Magnetic fields; Nanomaterials; Radiation; Reynolds number; Soret and Dufour impacts; Suction; thermal radiation; Variables; Velocity; Viscosity; viscous dissipation
• ISSN: 2297-8747; 1300-686X; 2297-8747
• DOI: 10.3390/mca27050080

Here, our main aim is to examine the impacts of Dufour and Soret in a radiative Darcy–Forchheimer flow. Ohmic heating and the dissipative features are outlined. The characteristics of the thermo-diffusion and diffusion-thermo effects are addressed. A binary chemical reaction is deliberated. To examine the thermodynamical system performance, we discuss entropy generation. A non-linear differential system is computed by the finite difference technique. Variations in the velocity, concentration, thermal field and entropy rate for the emerging parameters are scrutinized. A decay in velocity is observed for the Forchheimer number. Higher estimation of the magnetic number has the opposite influence for the velocity and temperature. The velocity, concentration and thermal field have a similar effect on the suction variable. The temperature against the Dufour number is augmented. A decay in the concentration is found against the Soret number. A similar trend holds for the entropy rate through the radiation and diffusion variables. An augmentation in the entropy rate is observed for the diffusion variable.