Simulation of three dimensional double-diffusive throughflow in internally heated anisotropic porous media

Harfash, Akil J.; Hill, Antony A.

Abstract

A model for double-diffusive convection in an anisotropic porous layer with a constant throughflow is explored, with penetrative convection being simulated via an internal heat source. The validity of both the linear instability and global nonlinear energy stability thresholds are tested using three dimensional simulation. Our results show that the linear threshold accurately predicts on the onset of instability in the steady state throughflow. However, the required time to arrive at the steady state increases significantly as the Rayleigh number tends to the linear threshold. © 2014 Elsevier Ltd. All rights reserved.

• Journal Article Type: Article
• Acceptance Date: Jan 15, 2014
• Publication Date: May 1, 2014
• Deposit Date: Aug 6, 2014
• Publicly Available Date: Nov 15, 2016
• Journal: International Journal of Heat and Mass Transfer
• Print ISSN: 0017-9310
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 72
• Pages: 609-615
• DOI: https://doi.org/10.1016/j.ijheatmasstransfer.2014.01.048
• Keywords: double-diffusive convection, throughflow, internal heat source, finite differences, anisotropic porous media
• Public URL: https://uwe-repository.worktribe.com/output/818119
• Publisher URL: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.01.048
• Additional Information: Additional Information : This is the pre-peer reviewed version of an article published in International Journal of Heat and Mass Transfer. The final, published version can be viewed online: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2014.01.048
• Contract Date: Nov 15, 2016