摘要A thermodynamic cavitation model is developed to simulate the cavitating water flow in a wide temperature range. The thermal effect on bubble growth during cavitation is introduced in the developed model by considering both pressure difference and heat transfer between the vapor and liquid phase. The cavitating turbulent flow over a NACA0015 hydrofoil has been simulated at various temperatures from room temperature to 150°C by using the present cavitation model, which has been validated by the experimental data. It is seen that the thermodynamic effects of cavitation, vapor depression and temperature depression are much more predominant in high temperature water compared with those in room temperature water. These results indicate that the proposed thermodynamic cavitation model is reasonably applicable to the cavitating water flow in a wide temperature range.
Abstract：A thermodynamic cavitation model is developed to simulate the cavitating water flow in a wide temperature range. The thermal effect on bubble growth during cavitation is introduced in the developed model by considering both pressure difference and heat transfer between the vapor and liquid phase. The cavitating turbulent flow over a NACA0015 hydrofoil has been simulated at various temperatures from room temperature to 150°C by using the present cavitation model, which has been validated by the experimental data. It is seen that the thermodynamic effects of cavitation, vapor depression and temperature depression are much more predominant in high temperature water compared with those in room temperature water. These results indicate that the proposed thermodynamic cavitation model is reasonably applicable to the cavitating water flow in a wide temperature range.
ZHANG Yao;LUO Xian-Wu;JI Bin;LIU Shu-Hong;WU Yu-Lin;XU Hong-Yuan. A Thermodynamic Cavitation Model for Cavitating Flow Simulation in a Wide Range of Water Temperatures[J]. 中国物理快报, 2010, 27(1): 16401-016401.
ZHANG Yao, LUO Xian-Wu, JI Bin, LIU Shu-Hong, WU Yu-Lin, XU Hong-Yuan. A Thermodynamic Cavitation Model for Cavitating Flow Simulation in a Wide Range of Water Temperatures. Chin. Phys. Lett., 2010, 27(1): 16401-016401.
[1] Brennen C E 1994 Hydrodynamics of Pumps (London:Concepts NREC and Oxford University) p 142 [2] Deshpande M et al 1997 J. Fluids. Eng. 119 420 [3] Stahl H A and Stepanoff A J 1956 J. Basic. Eng. 78 1691 [4] Holl J W et al 1975 J. Fluids. Eng. 97 507 [5] Tani N and Nagashima T 2002 $4^{\rm th$ Int.Conference on Launcher Technology (Liege, Belgium) [6] Rapposelli E and Agostino L D 2003 $5^{\rm th$ Int.Symposium on Cavitation (Osaka, Japan) [7] Utturkar Y, Thakur S and Shyy W 2005 43rd AIAAAerospace Sciences Meeting and Exhibit (Reno, Nevada) [8] Hosangadi A, Ahuja V and Ungewitter R J 2007 J.Propulsion. Power. 23 1225 [9] Kubota A et al 1992 J. Fluid. Mech. 240 59 [10] ANSYS Inc 2006 ANSYS CFX-Solver Theory Guide p 178 [11] Xu J J and Jia D N 2000 Boiling Heat and Gas-liquidTwo Phase Flow (Beijing: Atomic Energy Press) p 223 (in Chinese) [12] Yang C X et al 1999 J. Thermal. Power. Eng. 14 246 [13] Plesskt M S and Zwick S A 1954 J. Appl. Phys. 25 493 [14] Cervone A et al 2006 J. Fluids. Eng. 128 326
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