Abstract
Computational Fluid Dynamics (CFD) simulations of cavitating flow through water hydraulic poppet valves were performed using advanced RNGk-epsilon turbulence model. The flow was turbulent, incompressible and unsteady, for Reynolds numbers greater than 43000. The working fluid was water, and the structure of the valve was simplified as a two dimensional axisymmetric geometrical model. Flow field visualization was numerically achieved. The effects of inlet velocity, outlet pressure, opening size as well as poppet angle on cavitation intensity in the poppet valve were numerically investigated. Experimental flow visualization was conducted to capture cavitation images near the orifice in the poppet valve with 30° poppet angle using high speed video camera. The binary cavitating flow field distribution obtained from digital processing of the original cavitation image showed a good agreement with the numerical result.
This is a preview of subscription content, log in via an institution to check access.
References
Aoyama, Y., Matsuoka, Y., Yamamoto, M., et al., 1988. The cavitation performance of an oil hydraulic poppet valve.In: Transactions of the Japan Society of Mechanical Engineers, Part B, 54 (503), p. 1710–1715.
Henrik L. Sørensen, 1999. Experimental and numerical analysis of flow force compensation methods for hydraulic seat valve.In: The Sixth Scandinavian International Conference on Fluid Power Tampere, Finland, p. 471–482.
Inaguma, Y., Hibi, A., 1988. A study on cavitation on two-stage hydraulic restrictors.J. Jpn. Hydro. Pneum. Soc.,9 (7): 572 (in Japanese).
Johnston, D. N., Edge, K. A., Vaugham, N. D. 1991. Experimental investigation of flow and force characteristics of hydraulic poppet and disc valves. Proc.Instn. Mech. Engrs, Part A, p. 205; 161.
Lin, J. Z. Zhou Z. X., Wu, T. et al., 2001. Research on disturbance properties of suspensions near the injection area of moving jet.Journal of Zhejiang University SCIENCE,2(1): 15–23.
Oshima, S., 1989. An experimental study on several poppet valves with difference in shape.In: JHPS Intern. Sympo. on Fluid Power, Tokyo, p. 359.
Tsukiji, T., Yonezawa, Y., Ishii, Y., 1995. Flow in a three-dimensional poppet valve for oil hydraulic power applications. Transactions of the Japan Society of Mechanical Engineers, Part B,61(583), p. 998–1004.
Ueno, H., Okajima, A., Tanaka, H., et al., 1994. Noise measurement and numerical simulation of oil flow in pressure control valves.JSME International Journal (Series B),37(2), 336–341.
Vaughan, N. D., Johnston, D. N., Edge, K. A., 1992. Numerical simulation of fluid flow in poppet valves.Proc. Instn. Mech. Engrs., (Part C), 206: 119–127.
Author information
Authors and Affiliations
Additional information
Project supported by the National Natural Science Foundation of China (No. 59835160) and Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry of China (No. 50175097)
Rights and permissions
About this article
Cite this article
Hong, G., Xin, F., Hua-yong, Y. et al. Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system. J. Zhejiang Univ.-Sci. 3, 395–400 (2002). https://doi.org/10.1631/BF02839479
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/BF02839479