Simulation of three-dimensional cavitation in radial divergent test section using different mass transfer models

  • 1 University of Maribor, Faculty of Mechanical Engineering, Slovenia


Cavitation is a phenomenon of liquid transition to vapour which occur at sudden drop in pressure. It can be studied experimentally using visualization techniques or numerically using numerical packages. In order to numerically predict cavitation Reynolds Averaged Navier Stokes equations and an additional transport equation for the liquid volume fraction can be used. In the additional transport equation mass transfer rate due to cavitation is modelled using different mass transfer models. In the presented paper cloud cavitation in radial divergent test section was studied numerically using three different widespread mass transfer models. The models used were Zwart, Kunz and Singhal mass transfer models. Zwart model is a native model of ANSYS CFX program while other two were implemented to the program. Steady state and transient RANS simulations were performed using the simulation program, standard k-e turbulence model and scalable wall functions. The results of numerical simulations were compared with the results of experimental measurements performed at the University of Grenoble. Based on the presented results we concluded that all mass transfer models correctly predict the area of cloud cavitation formation.



  1. Biluš, I., Bombek, G, Hočevar, M., Širok, B., Cencič, T., Petkovšek, M. (2016) The experimental analysis of cavitating structure fluctuations and pressure pulsations in the cavitation station. Strojniški vestnik - Journal of Mechanical Engineering 60(2014)3, 147-157. DOI:10.5545/sv-jme.2013.1462
  2. Liu, T., Khoo, B., Xie, W., (2004). Isentropic one-fluid modelling of unsteady cavitating flow. J. Comp. Phys. 201 (1), 2004, 80-108.
  3. Sinibald, E., Beux, F., Salvetti, M., (2006). A numerical method for 3D barotropic flows in turbomachinery. Flow Turbul. Combust. 76, 2006, 371-381.
  4. Xie, W., Liu, T., Khoo, B., (2006). Application of a onefluid model for large scale homogeneous unsteady cavitation: the modified Schmidt model. Compt. & Fluid 35, 2006, 1177-1192.
  5. Goncalves, E., Patella, R.F., (2009). Numerical simulations of cavitating flows with homogeneous models. Comput. & Fluids 38 (9), 2009, 1682-1696.
  6. Coutier-Delgosha, O., Reboud, J.L., Delannoy, Y., (2003). Numerical simulation of the unsteady behaviour of cavitating flows. International Journal for Numerical Methods in Fluids 42, 527–548
  7. Barre, S., Rolland, J., Boitel, G., Goncalves, E., Fortes Patella, R., (2009). Experiments and modeling of cavitating flows in venturi: attached sheet cavitation. European Journal of Mechanics B/Fluids 28, 444–464.
  8. Zwart, P., Gerber, A.G., Belamri, T., (2004). A two-phase model for predicting cavitation dynamics. In: ICMF 2004 International Conference on MultiphaseFlow, Yokohama, Japan.
  9. Singhal, A.K., Athavale, M.M., Li, H., Jiang, Y., (2002). Mathematical basis and validation of the full cavitation model. Journal of Fluids Engineering 124 (3),617–624.
  10. Kunz, R.F., Boger, D.A., Stinebring, D.R., Chyczewski, T.S., Lindau, J.W., Gibeling, H.J., Venkateswaran, S., Govindan, T.R., (2000). A preconditioned Navier–Stokes method for twophase flows with application to cavitation prediction. Computers and Fluids, 29.
  11. Huuva, T. Large Eddy Simulation of Cavitating and Noncavitating Flow. Ph. D. thesis, Department of Shipping and Marine Technology, Chalmers University of Technology, Gothenburg, Sweden, 2008.
  12. Merkle, C.L., Feng, J., Buelow, P.E.O. Computational modeling of the dynamics of sheet cavitation. Third International Symposium on Cavitation, Grenoble, France, 1998.
  13. Kim, K.H., Chahine, G. Franc, J.P., Karim, A. Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction. 2014, XVII, 399 p. 290 illus., 220 illus. in color, Hardcover ISBN: 978-94-017-8538-9.
  14. Morgut, M., Nobile, E., Biluš, I. Comparison of mass transfer models for the numerical prediction of sheet cavitation around a hydrofoil. International Journal of Multiphase Flow 37; 2011:620-626.

Article full text

Download PDF