Comment on 'Primary instability mechanisms on the magnetohydrodynamic boundary layer flow over a rotating disk subject to a uniform radial flow' [Phys. Fluids 21, 074103 (2009)]

摘要

It is pointed out that the model used in the paper "Primary instability mechanisms on the magnetohydrodynamic boundary layer flow over a rotating disk subject to a uniform radial flow" by Turkyilmazoglu [Phys. Fluids 21, 074103 (2009)] is incomplete since the electric potential has been neglected. The results of the work should therefore be considered as qualitative until the analysis has been repeated using the correct set of equations.