Rayleigh-Benard convection in a binary fluid-saturated anisotropic porous layer with variable viscosity effect

• Published in: International Journal of Advanced and Applied Sciences
• Main Author: Abidin N.H.Z.; Mokhtar N.M.; Khalid I.K.; Arbin N.; Arsad R.
• Format: Article
• Language: English
• Published: Institute of Advanced Science Extension (IASE) 2022
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124180574&doi=10.21833%2fIJAAS.2022.02.019&partnerID=40&md5=e2035f06e9c75b6c4bf756a22fadbda9

Rayleigh-Benard convection due to buoyancy that occurred in a horizontal binary fluid layer saturated anisotropic porous media is investigated numerically. The system is heated from below and cooled from above. The temperature-dependent viscosity effect was applied to the double-diffusive binary fluid and the critical Rayleigh number for free-free, rigid-free, and rigid-rigid representing the lower-upper boundary were obtained by using the single-term Galerkin expansion procedure. Both boundaries are conducted to temperature. The effect of temperature-dependent viscosity, mechanical anisotropy, thermal anisotropy, Soret, and Dufour parameters on the onset of stationary convection are discussed and shown graphically. © 2022 The Authors.