Analysis of nanofluid flow past a permeable stretching/shrinking sheet (Q2211514)

The paper is devoted to the boundary value problem \[ f'''+f f'' -f'^2=0,\quad f(0)=S,\, f'(0)=\lambda,\quad f'(+\infty)=0. \] This boundary value problem arises in a model of the flow of a nanofluid past a heated, permeable sheet that can either stretch or shrink. In such a case, \(f\) represents the fluid velocity, \(S\) measures the suction or injection of the fluid through the sheet and \(\lambda\) measures the stretching of shrinking rate of the sheet. The authors completely characterise the solution set for the above BVP. Interestingly, the results presented here contradict previous numerical simulations in [\textit{S. Jahan} et al., ``Analysis of heat transfer in nanofluid past a convectively heated permeable stretching/shrinking sheet with regression and stability analyses'', Res. Phys. 10, 395--405 (2018; \url{doi:10.1016/j.rinp.2018.06.021})].