A finite element model and its equivalent electronic analogue circuit has been developed for fluid transients in hydraulic transmission lines with laminar frequency-dependent friction. Basic equations are approximated to be a set of ordinary differential equations that can be represented in state-space form. The accuracy of the model is demonstrated by comparison with the method of characteristics.
Issue Section:Technical Briefs
Keywords:hydraulic systems, transmission lines, pipe flow, flow simulation, finite element analysis, pressure, transients, state-space methods, Galerkin method
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