Thermal convection in a horizontally isotropic bi-disperse porous medium (BDPM) uniformly heated from below is analysed. The combined effects of uniform vertical rotation and Brinkman law on the stability of the steady state of the momentum equations in a BDPM are investigated. Linear and nonlinear stability analysis of the conduction solution is performed, and the coincidence between linear instability and nonlinear stability thresholds in the L2-norm is obtained.
Effect of anisotropy on the onset of convection in rotating bi-disperse Brinkman porous media / Capone, F.; De Luca, R.; Massa, G.. - In: ACTA MECHANICA. - ISSN 0001-5970. - 232:9(2021), pp. 3393-3406. [10.1007/s00707-021-03002-8]
Effect of anisotropy on the onset of convection in rotating bi-disperse Brinkman porous media
Capone F.
;De Luca R.;Massa G.
2021
Abstract
Thermal convection in a horizontally isotropic bi-disperse porous medium (BDPM) uniformly heated from below is analysed. The combined effects of uniform vertical rotation and Brinkman law on the stability of the steady state of the momentum equations in a BDPM are investigated. Linear and nonlinear stability analysis of the conduction solution is performed, and the coincidence between linear instability and nonlinear stability thresholds in the L2-norm is obtained.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
