Authors: D A Nield 
              Publish Date: 2012/08/17
              Volume: 95, Issue: 3, Pages: 581-584 
			  
              Abstract
              Recent work on what has been called the phenomenon of heat flux bifurcation that occurs at a boundary of a porous medium or at an interface with a fluid clear of solid material when a twotemperature model for the porous medium is employed is discussed An alternative interpretation of the situation one in which the physics of the problem is emphasized is presented
              
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