| Issue |
MATEC Web Conf.
Volume 168, 2018
XXI. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2018 (AEaNMiFMaE-2018)
|
|
|---|---|---|
| Article Number | 02011 | |
| Number of page(s) | 10 | |
| Section | Modelling and Simulation in Fluid Mechanics and Energy | |
| DOI | https://doi.org/10.1051/matecconf/201816802011 | |
| Published online | 23 May 2018 | |
Investigation of hydraulic fitting losses
Department of Hydromechanics and Hydraulic Equipment, Faculty of Mechanical Engineering, VŠB-Technical University of Ostrava, 17. listopadu 15, 70833 Ostrava – Poruba, Czech Republic
* Corresponding author: marian.bojko@vsb.cz
Fluid flow in hydraulic systems, fittings, and piping causes hydraulic losses due to the change of flow direction and friction in the fluid. The main consequence of the resulting losses is the increase in the overall pressure gradient of the circuit. The paper is focused on the investigation of valve losses and the determination of resistance coefficients, the definition of which depends on the valve type. Methods of determination are of two types, i.e. experimental methods and mathematical methods. In the case of experimental methods, the procedures prescribed by the standards and regulations must be respected. Mathematical methods are related to defining an appropriate mathematical model and numerical approach. Both methods are applied to the ball valve and model verification is performed at the same time. The output of the thesis is the methodology for determination of resistance coefficients of valves with other diameters and other flowing media based on verified mathematical modeling.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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