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Numerical Simulation of Cavitating Flow in a Globe Valve: Comparison of OpenFoam and CFX

[+] Author Affiliations
Daniel Rodriguez Calvete, Anne Gosset

Universidad de A Coruña, Ferro, Spain

Daniel Pierrat, Anthony Couzinet

Centre Technique des Industries Mécaniques, Nantes, France

Paper No. PVP2016-63599, pp. V003T03A002; 10 pages
  • ASME 2016 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Vancouver, British Columbia, Canada, July 17–21, 2016
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5039-8
  • Copyright © 2016 by ASME


The efficiency of control valves operating with liquids is highly conditioned by the occurrence of cavitation when they undergo large pressure drops. For severe service control valves, the subsequent modification of their performance can be crucial for the safety of an installation. In this work, two CFD codes, OpenFoam [1] and Ansys-CFX, are used to characterize the flow in a globe valve, with the objective to compare their capabilities in solving cavitating flows in complex 3D geometries. In both codes, an Homogeneous Equilibrium approach is adopted, and phase change is modeled with a similar cavitation model. It is found that both solvers predict correctly the location of vapor cavities, but tend to underestimate their extension. The flow rate is correctly calculated, but in strong cavitating regimes, it is affected by the underprediction of vapor cavities. The force acting on the stem is found to be more sensitive to the computation parameters.

Copyright © 2016 by ASME



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