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Computational Cavitation Flows at Inception and Light Stages on an Axial-Flow Pump Blade and in a Cage-Guided Control Valve 被引量:13

Computational Cavitation Flows at Inception and Light Stages on an Axial-Flow Pump Blade and in a Cage-Guided Control Valve
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摘要 Cavitation flows induced around an axial-flow pump blade and inside a high pressure cage-type valve are simulated by a two-dimensional unsteady Navier-Stokes analysis with the simplest treatment of bubble dynamics. The fluid is assumed as a continuum of homogeneous dispersed mixture of water and vapor nuclei. The analysis is aimed to capture transient stages with high amplitude pressure change during the birth and collapse of the bubble especially at the stage of cavitation inception. By the pump blade analysis, in which the field pressure is moderate, cavitation number of the inception and locations of developed cavitation are found to agree with experimental results in a wide flow range between high incidence and negative incidence. In the valve flow analysis, in which the water pressure of 5MPa is reduced to 2MPa, pressure change responding to the bubble collapse between the vapor pressure lower than 1 KPa and the extreme pressure of higher than 104 KPa is captured through a stable computation. Location of the inception bubble and pressure force to the valve plug is found agree well with the respective experimental features.
出处 《Journal of Thermal Science》 SCIE EI CAS CSCD 2007年第4期337-345,共9页 热科学学报(英文版)
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参考文献10

  • 1Kubota,A,Kato,H,and Yamaguchi,H.A new modeling of cavitating flows:a numerical study of unsteady cavitation on a hydrofoil section[].Journal of Fluid Mechanics.1992
  • 2Mejri,I,Bakir,E,Rey.R,and Belamri,T.Comparison of Computational Results Obtained From a Homogeneous Cavitation Model with Experimental Investigations of Three Inducers[].JFluids EngineeringTransASME.2006
  • 3Tokumaru,T,Kamijo,K,and Matsumoto,Y.A Numerical Study of Thermodynamic Effect of Sheet Cavitation. Proc.of ASME FEDSM‘02,FEDSM2002-31008 . 2002
  • 4Senocak,I,and Shyy.W.Evolution of Cavitation Models for Navier-Stokes Computations. Proc.of ASME FEDSM‘02,FEDSM2002-31011 . 2002
  • 5Ahuja,V,and Hosangadi,A.Analyses of Unsteady Cavitation in Rocket Feed System and Flow Control Elements[].Proc~(th)International Symposium on CavitationPaper NoCAV.2006
  • 6Yuan,W,and Schnerr,G.Numerical Simulation of Two-Phase Flow in Injection Nozzles:Interaction of Cavitation and External Jet Formation[].JFluids EngineeringTransASME.2003
  • 7Frobenius,M.,Schilling R.,Friedrichs,J.,and Kosyna,G.Numerical and Experimental Investigations of the Cavitating Flow in a Centrifugal Pump Impeller. Proc.ASME FEDSM‘02,FEDSM2002-31006 . 2002
  • 8Nohmi,M,Goto,A,Iga.Y,and Ikohagi,T.Cavitation CFD in a Centrifugal Pump. Proc.5~(th) International Symposium on Cavitation(CAV2003) ,paper CAV03-OS-4-010 . 2003
  • 9Gonzalo Flores,N,Rolland,J,Goncalves,E,Fortes Patella,R,and Rebattet,C.Head Drop of Spatial Tur-bopump Inducer[].Proc~(th) International Symposium on CavitationCAV.2006
  • 10Tanguay,M,and Colonius,T.Numerical Investigation of Bubble Cloud Dynamics in Shock Wave Lithotripsy. Proc.ASME FEDSM‘02,Paper FEDSM2002-31010 . 2002

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