Nonlinear stability analysis of double diffusive convection in a fluid saturated porous layer with variable gravity and throughflow

作者：

Highlights：

• The linear and nonlinear stability analysis are applied for double diffusive convection problem in porous medium.

• The problem is solved for the system when it is heated from below and salted from below as well as from above.

• The effect of throughflow parameter and gravity variation parameter are investigated on the stability of system.

• The eigenvalue problems obtained from linear as well as nonlinear stability analysis are solved using Chebyshev pseudo-spectral method.

摘要

•The linear and nonlinear stability analysis are applied for double diffusive convection problem in porous medium.•The problem is solved for the system when it is heated from below and salted from below as well as from above.•The effect of throughflow parameter and gravity variation parameter are investigated on the stability of system.•The eigenvalue problems obtained from linear as well as nonlinear stability analysis are solved using Chebyshev pseudo-spectral method.

论文关键词：Throughflow,Double diffusive convection,Convection problem,Variable gravity field,Nonlinear stability analysis

论文评审过程：Received 26 April 2021, Revised 5 February 2022, Accepted 2 March 2022, Available online 14 March 2022, Version of Record 14 March 2022.

论文官网地址：https://doi.org/10.1016/j.amc.2022.127060