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Csaba Bazsó, Csaba Hos
Pág. 1 - 7
This paper focuses on flow induced static instabilities occurring in poppet valves. Computational fluid dynamics simulation were performed to gain static characteristics of the poppet valve and to demonstrate the unstable behaviour of the valve. Based on...
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Mhd Ghaith Burhani, Csaba Hos
Pág. 251 - 260
Pressure Relief Valves (PRVs) are key elements of any hydraulic system in the process industry, especially in chemical plants or hydraulic power transmission systems. Their task is to maintain the system pressure beneath a prescribed maximum pressure and...
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Péter Nagy-György, Csaba Hos
Pág. 200 - 209
This paper addresses the mixed Couette-Poiseuille problem, that is the flow between two parallel plates, in the presence of simultaneous pressure gradient and wall motion. Instead of the wall-normal coordinate y, we use the local shear stress as our prim...
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Tamás Huzsvár, Richárd Wéber, Csaba János Hos
Pág. 295 - 300
One of the basic infrastructures of every settlement is the water distribution system, which provides clean and potable water for both private houses, industrial consumers and institution establishments. The operational robustness and vulnerabilities of ...
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Richárd Wéber, Csaba Hos
Pág. 1 - 9
This paper focuses on the hydrodynamic behavior of liquid pipelines in the presence of air valves. The aim of installing such valves on pipeline systems is twofold: on one hand, they release the accumulated air content and on the other hand, they allow t...
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Kálmán Klapcsik, Roxána Varga, Csaba Hos
Pág. 51 - 64
This paper addresses the problem of locating the optimal pressure measurement points in a hydraulic system to help system management, calibration/validation of hydraulic models and measurement planning. Two approaches are discussed in the present work. T...
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Péter Csizmadia, Csaba Hos
Pág. 79 - 83
In the petroleum, food and energy industry, non-Newtonian fluids are widely used and their transport in pipelines can be highly expensive. When designing such systems, predicting the pressure drop for a given flow rate is of primary importance. In this p...
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Csaba Hos, Balázs Kuti
Pág. 23 - 27
The stability properties of the feedback control of a hydraulic cylinder is analysed with an emphasis on the effect of the control delay due to the discrete sampling. A simple theoretical model is developed for low-load cases, i.e. if the forces acting o...
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Péter Csizmadia, Csaba Hos
Pág. 29 - 35
The aim of this paper is to study the cyclone-like flow inside a hydrodynamic mixer experimentally, with a special emphasis on the differences in the flow field in the case of Newtonian and non-Newtonian fluids. The mixer consists a cylindrical body with...
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