Comments on 'Heat transfer enhancement in hydromagnetic dissipative flow past a moving wedge suspended by H_2O-aluminum alloy nanoparticles in the presence of thermal radiation'

摘要

Commentary is presented on Khan et al. (2017) [1]'s paper, where the authors studied 2D magnetohydrodynamic nanofluid flow past the moving wedge. This commentary shows that the parameters λ and m values can be lower than zero.