Dynamics of fluid flow through Soret-Dufour impacts subject to upward and downward motion of rotating disk

• Published in: International communications in heat and mass transfer Vol. 120; p. 105025
• Main Authors: Shehzad, S.A., Abbas, Z., Rauf, A., Abdelmalek, Zahra
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2021
• Subjects: Convective conditions; Rotating disk; SOR method; Soret Dufour effects; Three-dimensional flow; SOR method; Soret Dufour effects; Convective conditions; Rotating disk; Three-dimensional flow
• ISSN: 0735-1933; 1879-0178
• DOI: 10.1016/j.icheatmasstransfer.2020.105025

Flow features are encountered through numerical way using central finite differences approximations and Successive over Relaxation (SOR) method. Fluid flow is generated due to disk rotation, which moves in vertical direction both up and down. Similarity variables are accomplished in such a way that similarity equations can be limited to those communicated in viscous pumping analysis of traditional Von Karman problem for non-vertical motion of rotating disk. The significance of Soret and Dufour effects is also incorporated in fluid model. Additionally, the occurrence of convective boundary conditions associated to heat and mass are of physical concern in existing study. Graphical descriptions and tabular structures of numerical results are presented. The impacts of wall injection and suction are reviewed. It is judged that the uphill motion of rotating disk contributes to similar observations as in scenario of injection, while the downward direction signifies the wall suction like effects.