Fluid flow in the impulse valve of a hydraulic ram
Wojciech Sobieski
Faculty of Technical Sciences University of Warmia and Mazury in Olsztynhttp://orcid.org/0000-0003-1434-5520
Dariusz Grygo
Faculty of Technical Sciences University of Warmia and Mazury in OlsztynAbstract
The paper presents the results of a study investigating the equilibrium of forces acting on the closing element of the impulse valve in a water ram at the end of the acceleration stage. Acceleration is one of the three main stages in the working cycle of a water ram. In the first part of the paper, we estimated water velocity based on our earlier experimental measurements. We also calculated the minimum force required for closing the impulse valve. The second part of the paper discusses two variants of a numerical model, which was developed in ANSYS Fluent to determine the resultant hydrodynamic pressure and, consequently, the forces acting on the head of the impulse valve at the end of the acceleration stage. The main aim of this research was to verify the applicability of numerical modeling in water ram studies. The present study was motivated by the fact that Computational Fluid Dynamics is very rarely applied to water rams. In particular, we have not found any numerical studies related to the equilibrium of forces acting on the closing element of the impulse valve in a water ram.
Keywords:
ram pump, drag force, CFD, ANSYS FluentReferences
ANSYS Fluent in ANSYS Workbench User's Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
ANSYS Fluent Meshing User's Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
ANSYS Fluent User's Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
Bergant A, Simpson A R, Tijsseling A S 2006 Water hammer with column separation: A historical review. J FLUID STRUCT. 22: 135-171. Google Scholar
Choon T W, Aik L K, Aik L E, Him T T 2012 Investigation of Water Hammer Effect Through Pipeline System. International Journal on Advanced Science Engineering Informational Technology. 2(3): 48-53. Google Scholar
Design Modeler User's Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
Filipan V, Virag Z, Bergant A 2003 Mathematical modelling of a hydraulic ram pump system. Journal of Mechanical Engineering (Strojniški vestnik). 49(3), 137-149. Google Scholar
Ghidaoui M S, Zhao M, McInnis D A, Axworthy D H 2005 A Review of Water Hammer Theory and Practice. APPL MECH REV. 58: 49-76. Google Scholar
Gryboś, R 1998 Fundamentals of fluid mechanics (in Polish). PWN SA, Warszawa. Google Scholar
Grygo D 2018 Analysis of the phenomena occurring during the water ram operation. PhD Thesis, University of Warmia and Mazury in Olsztyn, The Faculty of Technical Sciences, Olsztyn. Google Scholar
Grygo D, Sobieski W 2015a Position of laboratory to phenomena research running in the ram water. Mechanik. 7: 237-244. Google Scholar
Grygo D, Sobieski W 2015b Proposals to use hydraulic rams (in Polish). Woda-Środowisko-Obszary Wiejskie. 15: 31-47. Google Scholar
Harith M N, Bakar R A, Ramasamy D, Quanjin M 2017 A significant effect on flow analysis & simulation study of improve design hydraulic pump. 4th International Conference on Mechanical Engineering Research (ICMER2017). DOI:10.1088/1757-899X/257/1/012076. Google Scholar
Hydraulic ram pumps. 2019. Appropedia. http://www.appropedia.org/Hydraulic_ram_pumps (February 28, 2019). Google Scholar
Landau L, Lifszyc J 2009 Hydrodynamics. PWN, Warszawa. Google Scholar
Maw Y Y, Htet Z M 2014 Design of 15 meter Head Hydraulic Ram Pump. International Journal of Scientific Engineering and Technology Research. 3(10), 2177-2181. Google Scholar
Mohammed S N 2007 Design and Construction of a Hydraulic Ram Pump. Leonardo Electronic Journal of Practices and Technologies. 11: 59-70. Google Scholar
Nałęcz, T, Pietkiewicz, P 2000a Influence of air as the second phase for the velocity propagation of shock wave into multilayer pipe. XVIII Conference of Research, Design, Production and Operating of Hydraulic Systems, Cylinder, Szczyrk. Google Scholar
Nałęcz, T, Pietkiewicz, P 2000b Determining of the velocity of the propagation impact wave into hydraulic lines with taking into account air as second phase. XII National Conference Pneuma 2000, Kielce. P. 255-262. Google Scholar
Sheikh S, Handa C C, Ninaew A P 2013 Design methodology for hydraulic ram pump (hydram). International Journal of Mechanical Engineering and Robotics Research. 2(4): 170-175. Google Scholar
Shende P B, Choudhary S K, Ninawe A P 2015 Analysis and Enhancement of Hydraulic Ram Pump using Computational Fluid Dynamics (CFD). International Journal for Innovative Research in Science & Technology. 2(3), 2349-6010. Google Scholar
Sobieski W 2011 The basic equations of fluid mechanics in form characteristic of the finite volume method. Technical Sciences. 14(2): 299-313. Google Scholar
Sobieski W 2013 The basic closures of fluid mechanics in form characteristic for the Finite Volume Method. Technical Sciences. 16(2): 93-107. Google Scholar
Sobieski W, Grygo D, Lipiński S 2016 Measurement and analysis of the water hammer in ram pump. Sadhana. 41(11). Google Scholar
Tacke J.H.P.M. (1988) Hydraulic rams − a comparative investigation. Communications on Hydraulic and Geotechnical Engineering, Delft University of Technology, Faculty of Civil Engineering, Report 88-1, ISSN 0169-6548; available from TU Delft repository: http://repository.tudelft.nl/. Google Scholar
Theory Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
Tijsseling A S, Bergant A 2012 Exact computation of waterhammer in a three-reservoir system. CASA-Report 12-41, December 2012, Eindhoven University of Technology, The Netherlands Google Scholar
Tutorial Guide. Release 14.5. 2012. ANSYS Inc. Google Scholar
Verspuy C., Tijsseling A.S. 1993 Hydraulic ram analysis. IAHR Journal of Hydraulic Research 31, 267-278. Google Scholar
Water-powered water pumping systems for livestock watering. 2019. Canada Agriculture and Agri-Food. http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/ba3468a2a8681f69872569d60073fde1/42131e74693dcd01872572df00629626/$FILE/wpower.pdf (February 28, 2019). Google Scholar
Watt S B 1975. A manual on the hydraulic ram for pumping water. Intermediate Technology Development Group, Water Development Unit, National College of Agricultural Engineering, Bedford. Google Scholar
Why Meribah Ram Pump? 2019. https://www.meribah-ram-pump.com/ (January 8, 2019). Google Scholar
Faculty of Technical Sciences University of Warmia and Mazury in Olsztyn
http://orcid.org/0000-0003-1434-5520
Faculty of Technical Sciences University of Warmia and Mazury in Olsztyn
