Advances in Hydroinformatics pp 433-444

Part of the Springer Hydrogeology book series (SPRINGERHYDRO) | Cite as

A Vortex Modeling with 3D CFD

Chapter

Abstract

Until now, the fine representations of the complex hydraulic phenomena such as Vortex rely on physical modeling for industrial purposes. EDF has been testing the 3D CFD code “Flow 3D©” for free surface flow simulation since five years. The main difficulty of using finite elements programs is the relevance and the stability of their numerical results. EDF decided to test in the field of vortex how reliable Flow 3D is. Flow 3D is a commercial CFD code using VOF method with a rectangular mesh. In this study, it is assumed that flow is liquid water with an interface simulated by VOF method. This study is based on a schematic hydraulic experimental model realized in the EDF-R&D laboratory. The chosen case is a simple configuration of a vertical downward drain hole. The basin is one meter length and around a half meter width. The water level is fixed, and the flow rate is adjustable. The main advantage of this experiment is that the geometry is easy to simulate with 3D CFD software. In this configuration, it is ensured that a vortex phenomenon exists and that it is stable during experimentations. An aerated vortex with no air flow rate has been chosen for the validation case. The aerated vortex length reaches the basin bottom. The first goal of the 3D CFD simulation is to check whether Flow 3D© is able to represent a vortex when it physically exists. The second objective is to find the simplest set of CFD parameters that represents the vortex as it appears in the physical experimentation.

Keywords

Vortex Water intake Complex hydraulic phenomenon Numerical simulation CFD VOF method 

References

  1. 1.
    De Siervi, F., Viguier, H.C., Greitzer, E.M., & Stan, C.S. (1982). Mechanisms of inlet-vortex formation. Journal of Fluid Mechanic, 124, 173–207.CrossRefGoogle Scholar
  2. 2.
    Levi, E. (1991). Vortices in hydraulics. Journal of Hydraulics Engineering, 117(4), 399–413.CrossRefGoogle Scholar
  3. 3.
    Hunt, J.C.R., Wray, A.A., Moin, P. (1998). Eddies,stream, and convergence zones in turbulent flows. Centre for Turbulence Research Report CTR-S88, 193.Google Scholar
  4. 4.
    Jain, A.K., Ranga Raju, K.G., & Garde, R.J. (1978). Vortex formation at vertical pipe intakes. Journal of the Hydraulics Division, ASCE, 104(10), 1429–1445.Google Scholar
  5. 5.
    Padmanabhan, M., & Hecker, G.E. (1984). Scale effects in pump sump models. Journal of Hydraulic Engineering, 110(11), 1540–1556.CrossRefGoogle Scholar
  6. 6.
    AFNOR (2009). Fascicule de documentation de l’AFNOR n° FD CEN/TR 13930. Pompes rotodynamiques: conception des ouvrages d’aspiration: recommandations d’installation des pompes.Google Scholar
  7. 7.
    ANSI (1998). Pump intake design. American National Standard Institute ANSI/HI 9.8-1998.Google Scholar
  8. 8.
    Tokyay, T.E., Constantinescu, S.G. (2005). Large eddy simulation and reynolds averaged Navier-Stokes simulations of flow in a realistic pump intake: A validation study. Impacts of global climate change (pp. 1–12). doi:10.1061/40792(173)423
  9. 9.
    Minisci, E., Telib, H., Cicatelli, G. (2005). Hydraulic design validation of the suction intake of a vertical centrifugal pump station, by use of computational fluid dynamic (CFD) analysis. Proceeding of the ASME Fluids Engineering Division Summer Meeting and Exhibition, Houston, USA, June 19–23 2005.Google Scholar
  10. 10.
    Chong, M.S., Perry, A.E., & Cantwell, B.J. (1990). A general classification of three-dimensional flow fields. Journal Physics of Fluids, A2(5), 408–420.MathSciNetGoogle Scholar
  11. 11.
    Levy, Y., Degani, D., & Seginer, A. (1990). Graphical visualization of vertical flows by means of helicity. AIAA Journal, 28(8), 1347–1352.CrossRefGoogle Scholar
  12. 12.
    Jeong, J., & Hussain, F. (1995). On the identification of a vortex. Journal Fluid Mechanic, 285, 69–94.MathSciNetCrossRefMATHGoogle Scholar

Copyright information

© Springer Science+Business Media Singapore 2014

Authors and Affiliations

  1. 1.EDF-CIHLe Bourget du LacFrance
  2. 2.EDF-R&DChatouFrance

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