We will discuss in detail matlab programming results of non hydrostatic dynamics on flow over matlab programming sill, particularly assess non linear and non hydrostatic contributions to modelled internal waves and inner wave energy fluxes. This work takes matlab new strategy to fixing non hydrostatic equations of layered flows over bottom topography. A perturbation technique is used in finding express expressions for matlab flow for different regimes of single and two layer flows over matlab sill. Excellent contract with outdated solutions and experimental data is bought, and more details of matlab programming non hydrostatic flow over matlab sill are published. The proposed method is straightforward and compact and eliminates matlab programming need for complicated numerical innovations to unravel matlab programming non hydrostatic equations. It is shown that during matlab programming method controlled regime of two layer flow over matlab sill, matlab programming flow upstream and farther downstream matlab programming sill crest can be described by matlab programming hydrostatic theory, and matlab programming flow is non hydrostatic over only matlab short distance on matlab programming downstream side of matlab programming crest.