The Hydraulic And Energy Dissipation Characteristics About The Stilling Basin With A Medium Bank For Small Hydraulics

Small hydropower stations belong to clean energy. It is an integral part of our country's strategy of sustainable development. The energy dissipation problem is the key projects to ensure the hydropower projects can run safety and effectiveness. The energy dissipation structure is the most important one of hydraulics problem.In this paper, the hydraulic characteristics and energy dissipation characteristics of the stilling basin are studied.In this paper, a model for stilling basin with Hom has been set up in this paper. At the basis, the hydraulic characteristics and energy dissipation characteristics have been studied. A great deel of measured data achieved.Thesis using theoretical analysis and model test generalizability of combining research methods, the analysis of stilling basin located in the canton add before and after the flow, velocity distribution and the effect of energy dissipation on the basis of factors resulted in a pool of water mean square value of turbulent energy, at the end of velocity distribution coefficient, kinetic energy correction factor, the focus changes of the index, derived Hom stilling pool of the energy dissipation ratio above formula, for small hydropower projects to provide the energy dissipation of the reference:â‘ the relations between the energy dissipation rate and the top weir Fr is little relevance;â‘¡when the height of Hom is lower than 9.4 (0.47), the energy dissipation ratio and the total basin energy dissipation are increased with the height;â‘¢the efficiency of energy dissipation is got to lower with the after shift position, it is rapidly lowering of energy dissipation after 90 (0.65);â‘£the energy dissipation efficiency is increased with the height of tail-water, but when it is higher than 12 (0.6), the energy dissipation ratio tended to stabilize.