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High-frequency sounds created if non-stationary flow processes form at throttling points. That is primarily the case where the flow state is determined by the forces of inertia. The associated speed a

If a flow is created between two stationary areas due to a pressure difference, (theoretically) a symmetrical velocity profile will form ( Figure S 101 a ), which is caused by adhesion of the fluid to

The degree of energy loss in a hydraulic system also depends on the type of flow. Flow is divided into laminar and turbulent flow: In the case of laminar flow , intended stream tube filaments run para

Mathematical model of a controlled subsystem, , which describes its the static and dynamic behaviour.

Wear on a metallic surface caused by solid particles contained in a liquid jet approaching at a high speed. Particle jet erosion results in smooth surfaces, as if they had been polished.

Hydro-mechanical converter (amplifier) system for servo valves , which is based on the conversion of kinetic energy to static energy. A jet pipe, which can be actuated by an electro-mechanical convert

Contraction A ‘1 of a flow rate when entering into a cross-section constriction. It arises when the wall of cross-section A 1 is removed ( Figure S 98 ). The jet contraction becomes smaller as the tra

A pressure oscillation , which expands at the speed of sound.

Seal for shafts and spindles (including against high pressures), that uses a tubular-shaped textile sealing material, which is under axial pressure, which, like the radial sealing tension created by t

Generic term for the methods and processes to accept measurement information and issue signals as the bearers of prepared information tailored to a given task, e.g. managing a technical process. Senso