The present work considers forced convection heat transfer of nanofluids in a channel filled with porous media under the Local Thermal Non-Equilibrium (LTNE) condition and includes a three-equation energy model, for the fluid/particle/solid phases. The fully-developed flow and the steady Darcy-Brinkman quation s employed in the porous medium channel. The local thermal non-equilibrium model is assumed etween the fluid, particles and the solid phases. The nanoparticles are considered with a non-uniform istribution inside the channel. As a result, the volume fraction distribution equation is also coupled with the ther governing equations. The effects of the Nield number and the modified thermal capacity ratio on the eat transfer are completely studied. In our previous work, we introduced one model for calculating the bsorbed heat flux by solid, particle and fluid phases. In this paper, three new different heat flux models are proposed and compared together. The effect of Nield number on absorbed heat flux obtained by 4 odels are completely studied and compared together.

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