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CFD simulation of flow field in a hydraulic turbine 2008-05-20 Meeting KTH SWECO TURAB

CFD simulation of flow field in a hydraulic turbine 2008-05-20 Meeting KTH SWECO TURAB. SEE MSc. Thesis. Overview of the Project Work Flow . Project Timing . Project Approach . 3 Main parts Structured meshing Using symmetry in mesh generation. G.V. B.R. D.T. Meshing of Guide Vane .

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CFD simulation of flow field in a hydraulic turbine 2008-05-20 Meeting KTH SWECO TURAB

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  1. CFD simulation of flow field in a hydraulic turbine2008-05-20 MeetingKTHSWECOTURAB SEE MSc. Thesis

  2. Overview of the Project Work Flow Project Timing

  3. Project Approach • 3 Main parts • Structured meshing • Using symmetry in mesh generation G.V B.R D.T

  4. Meshing of Guide Vane • Modified G.V geometry & opening angle

  5. Meshing of Guide Vane Passage geometry Passage mesh O-grid around GV

  6. Meshing of Guide Vane- Challenges

  7. Meshing of Guide Vane- Challenges

  8. Meshing of Guide Vane- Challenges

  9. Meshing of Guide Vane- Challenges

  10. Meshing of Guide Vane- Solution • Method 1

  11. Meshing of Guide Vane- Solution

  12. Meshing of Guide Vane- Solution • Method 1 • Method 2

  13. Meshing of Guide Vane- Solution

  14. Meshing of Guide Vane- Solution • Method 1 • Method 2 • Method 3

  15. Meshing of Blade Runner Defining passage Symmetric passage Passage mesh

  16. Meshing of Blade Runner

  17. Meshing of Blade Runner • Animation 1 • Animation 2

  18. Meshing of Draft Tube

  19. Next Steps • Exporting the meshes to the solver (Fluent) • Taking a down to top approach (part to total) • Each passage and part will be solved with inlet mass flow boundary condition seperatly • ? Using pridiodicity for 3 G.V+4 B.R then apply the outlet as the inlet of D.T

  20. Open questions • Confirmation of the B.R spatial location relative to the rotor shaft • CFX Turbo instead of the Fluent • Turab factory+site visit

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