Journal of Basic Engineering · 1972 · 13 citations · 0 references
EngineeringComputational EngineeringMechanical EngineeringComputational Fluid DynamicsComputational MechanicsFluid DynamicsComputational DynamicsFlow ModelingHydraulic ModelingHydropower EngineeringHydropower SystemsTransient Flow AnalysisClosed-loop SystemsDynamic Transient BehaviorGovernor SystemsNumerical Simulation Of Transient FlowNumerical Simulation Of TransientsTransient Flow SimulationTraveling Wave PropagationTurbine Operation
This paper develops a program for closed loop simulation of the transient behavior of a hydroelectric composite. The system modeling is comprehensive, including such factors as governor nonlinearities in mechanical compensation and servomotion. Special emphasis is given to conduit simulation in its elastic and frictional characteristics. The problem of friction is treated by appropriate attenuation of the traveling pressure wave. This point of view accounts for the phenomenon of regained head at decreased flows. The turbine characteristics are represented globally by means of polynomial approximation [1].