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2 Transactions of the Institute of Fluid-Flow Machinery

2 Nałęcz T. J.

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Hydrodynamic and strength analyses of high-pressure hydraulic conduits

Nałęcz T. J.

Transactions of the Institute of Fluid-Flow Machinery

2003

nr 114

49-56

The paper presents a review of the methods for determining the pressure shock wave propagation velocity and water hammer pressure in high-pressure thick-walled conduits, taking into account the geometry and the ways of hydraulic installation mounting, as well as the physical properties of materials. To simplify the calculations, characteristics determining the effects of material and conduit relative thickness on the pressure shock wave propagation velocity were made. The paper also describes a method of strength analysis of conduits that are part of high-pressure hydraulic systems, based on the matreial munimum criterion.

Water hammer pressure in thick-walled conduits

Nałęcz T. J.

Transactions of the Institute of Fluid-Flow Machinery

2002

nr 110

93-101

The paper presents a method allowing to determine water hammer pressure in thick-walled closed conduits. This method may be employed in hydrodynamic calculations and strength analyses in the case of hydraulic installations which are part of high-pressure hydraulic systems. The results of calculations concerning simple water hammer pressure are compared with the results obtained on the basis of formulas derived earlier by other authors, and the results of measurements.