Numerical Analysis of Cavitation Phenomenon in a Vaned Ring-Type Needle Valve
Publication: Journal of Energy Engineering
Volume 141, Issue 4
Abstract
Cavitation is a destructive phenomenon in industrial needle-type control valves. In order to reduce the damaging effects of cavitation, a circular row of vanes is used at the end section of the needle valve. By changing the path of flow at the end section of the valve and generating a spiral movement in fluid, these vanes increase the near-wall pressure; thus, cavitation intensity is reduced and the bubbles move away from the walls. In this study, the effect of vane camber angle on cavitation intensity and formation location has been investigated. The results show that by increasing the vane camber angle from 10° to 70°, the spiral movement of flow increases and cavitation intensity diminishes mildly; however, as the camber angle increases beyond 70°, the spiral flow movement increases considerably and there is a significant reduction in cavitation intensity. It should be mentioned that at camber angles less than 70°, the flow coefficient remains almost constant; but at angles greater than 70°, the flow coefficient diminishes, resulting in an increase of energy supply cost.
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References
Amirante, R., Del Vescovo, G., and Lippolis, A. (2006). “Evaluation of the flow forces on an open centre directional control valve by means of a computational fluid dynamic analysis.” Energy Convers. Manage., 47(13), 1748–1760.
Amirante, R., Moscatelli, P., and Catalano, L. (2007). “Evaluation of the flow forces on a direct (single stage) proportional valve by means of a computational fluid dynamic analysis.” Energy Convers. Manage., 48(3), 942–953.
Brennen, C. E. (2013). Cavitation and bubble dynamics, Cambridge University Press.
Chern, M.-J., Hsu, P.-H., Cheng, Y.-J., Tseng, P.-Y., and Hu, C.-M. (2012). “Numerical study on cavitation occurrence in globe valve.” J. Energy Eng., 25–34.
Ferrari, J., and Leutwyler, Z. (2008). “Fluid flow force measurement under various cavitation state on a globe valve model.” Proc., ASME 2008 Pressure Vessels and Piping Conf., ASME, 157–165.
Jiang, S., Gao, H., Sun, J., Wang, Y., and Zhang, L. (2012). “Modeling fixed triangular valve tray hydraulics using computational fluid dynamics.” Chem. Eng. Process. Process Intensif., 52, 74–84.
Li, S., Aung, N. Z., Zhang, S., Cao, J., and Xue, X. (2013). “Experimental and numerical investigation of cavitation phenomenon in flapper–nozzle pilot stage of an electrohydraulic servo-valve.” Comput. Fluids, 88, 590–598.
Lisowski, E., and Rajda, J. (2013). “CFD analysis of pressure loss during flow by hydraulic directional control valve constructed from logic valves.” Energy Convers. Manage., 65, 285–291.
Moujaes, S. F., and Jagan, R. (2008). “3D CFD predictions and experimental comparisons of pressure drop in a ball valve at different partial openings in turbulent flow.” J. Energy Eng., 24–28.
Nie, S., Huang, G., Li, Y., Yang, Y., and Zhu, Y. (2006). “Research on low cavitation in water hydraulic two-stage throttle poppet valve.” Proc. Inst. Mech. Eng. Part E J. Process Mech. Eng., 220(3), 167–179.
Osterman, A., Hočevar, M., Širok, B., and Dular, M. (2009). “Characterization of incipient cavitation in axial valve by hydrophone and visualization.” Exp. Therm. Fluid. Sci., 33(4), 620–629.
Palau-Salvador, G., González-Altozano, P., and Arviza-Valverde, J. (2008). “Three-dimensional modeling and geometrical influence on the hydraulic performance of a control valve.” J. Fluids Eng., 130(1), 011102.
Shirazi, N. T., Azizyan, G. R., and Akbari, G. H. (2012). “CFD analysis of the ball valve performance in presence of cavitation.” Life Sci. J. Acta Zhengzhou Univ. Overseas Edition, 9(4), 1460–1467.
Xu, H., Guang, Z. M., and Qi, Y. Y. (2011). “Hydrodynamic characterization and optimization of contra-push check valve by numerical simulation.” Ann. Nucl. Energy, 38(6), 1427–1437.
Zhao, W.-G., Zhang, L.-X., and Shao, X.-M. (2011). “Numerical simulation of cavitation flow under high pressure and temperature.” J. Hydrodyn. Ser. B, 23(3), 289–294.
Zhu, Y., Gao, X., and Li, X. (2011). “Numerical simulation and visualization of flow field in a special piloted directional valve for marine steering gear.” Procedia Eng., 24, 539–545.
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Published In
Journal of Energy Engineering
Volume 141 • Issue 4 • December 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 5, 2014
Accepted: Oct 15, 2014
Published online: Nov 19, 2014
Discussion open until: Apr 19, 2015
Published in print: Dec 1, 2015
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