Comment on "Convection in a horizontal fluid layer under an inclined temperature gradient" [Phys. Fluids 23, 084107 (2011)]
Ortiz-Pérez and Dávalos investigated the stability of parallel convective flow. From the article it seems that this equations of flow obtained by the authors. Meanwhile, it is well studied theoretically and experimentally(exact solution obtained more than half a century ago.
physics.flu-dyn↗