Modelowanie własności dynamicznych hydraulicznych przewodów zamkniętych. Porównanie modeli o parametrach rozłożonych z modelami o parametrach skupionych

The paper deals with the mathematical models of the hydraulic long line regarded as a two-port element of the system. Both lumped parameters models and distributed parameters ones are characterized by the strictly determined transfer matrix possessing dimensionless terms which are the combination of seven fluid and conduit parameters and three working ones.

Special regard was paid to the lumped parameters models – both for laminat and turbulent flow – which may be applied to the first resonanse frequency.