Thermal convection in rotating anisotropic bidispersive porous layers. (December 2020)

• Record Type: Journal Article
• Authors: Capone, F; De Luca, R; Gentile, M
• Is Part Of: Mechanics research communications. Volume 110(2020)
• Publication Date: 2020-12
• Subjects: Bidispersive convection -- Anisotropic porous material -- Linear and nonlinear stability -- Coriolis force; Mechanics, Applied -- Periodicals; Mécanique appliquée -- Périodiques; Mechanics, Applied; Periodicals; 530
• DOI: 10.1016/j.mechrescom.2020.103601
• Languages: English
• ISSNs: 0093-6413

Abstract

Highlights: A mathematical model for fluid dynamics in a rotating bidispersive porous medium, horizontally isotropic, is introduced. Linear and nonlinear stability analyses for thermal convection are performed. The coincidence between linear instability and non-linear stability thresholds has been proved. The influence of a uniform rotation on the onset of convection has been examined. Abstract: Linear and nonlinear stability analyses for thermal convection in a rotating bidispersive porous medium, horizontally isotropic, is performed. Since the coincidence between linear instability and non-linear stability thresholds has been proved, the linear theory captures completely the physics of the problem at stake.