Theory of Minimum Rate of Energy Dissipation

摘要: A general theory of minimum rate energy dissipation for a class open channel flows with or without the movement sediment is proposed in this paper. This states that under steady equilibrium gradually varied flow conditions. The derived from Navier-Stoke's equations motion transport. It applies to turbulent and laminar as long inertia forces due time-averaged velocity distribution small compared gravity shear. different degrees generality can be used explain fluvial processes change velocity, slope, roughness, geometry, pattern, profile river an eqiulibrium condition during process self-adjustment reach condition.