Computation of 3D Flow Field in a Draft Tube

  • B. Lazzaro
  • P. Riva
Chapter
Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NNFM, volume 39)

Summary

The three-dimensional flow field inside the draft tube proposed by the GAMM WORKSHOP 1989 organizers is here simulated with FIDAP, a fluidodynamic program based on the finite element method. The mesh has been generated with the aid of FIDAP Meshing module. The solution method is based on the Navier-Stokes equations, taking into account turbulence with the k-∈ model. The numerical analysis was carried out solving sequentially the submatrices that include only the unknowns of one conservation equation. Results show wide areas of secondary flow extended to the outlet section, which affect pressure recovery.

Keywords

Secondary Flow Draft Tube Viscous Sublayer Vortex Breakdown Outlet Section 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Bibliography

  1. [1]
    “FIDAP Theoretical Manual”, F.D.I. Inc.-Evanston, Ill.,USA.Google Scholar
  2. [2]
    Schlichting, H.: “Boundary Layer Theory”, McGraw Hill Book Company, New York, 1968, p. 568.Google Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig/Wiesbaden 1993

Authors and Affiliations

  • B. Lazzaro
    • 1
  • P. Riva
    • 1
  1. 1.Riva Hydroart S.p.A.MilanItaly

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