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Computation of the Flow of a Dual-Stream Jet with Fan-Flow Deflectors for Noise Reduction

Computation of the Flow of a Dual-Stream Jet with Fan-Flow Deflectors for Noise Reduction. 1/13/2008. Computational Models. Configurations for 2-vane and 4-vane caes. JST Scheme. Explicit Time Marching. Multi-Block. MPI. Computational Approach. Flow Control Equation:

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Computation of the Flow of a Dual-Stream Jet with Fan-Flow Deflectors for Noise Reduction

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  1. Computation of the Flow of a Dual-Stream Jet with Fan-Flow Deflectors for Noise Reduction 1/13/2008

  2. Computational Models Configurations for 2-vane and 4-vane caes

  3. JST Scheme Explicit Time Marching Multi-Block MPI Computational Approach • Flow Control Equation: – 3D Reynolds-Average Navier-Stokes Equation • CFD code: –ParCAE Program • Turbulence Model –k-ωSST • Preconditioning

  4. Computational Grid Grid of Base B27 Nozzle Grid of Vane-D Nozzle

  5. Base Vane-A Vane-B Vane-C

  6. Vane-D Vane-E Vane-F Vane-G

  7. Base Vane-A Vane-B Vane-C

  8. Vane-D Vane-E Vane-F Vane-G

  9. Axial Velocity Profile (Base Nozzle) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  10. Axial Velocity Profile (Vane-A) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  11. Axial Velocity Profile (Vane-B) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  12. Axial Velocity Profile (Vane-C) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  13. Axial Velocity Profile (Vane-D) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  14. Axial Velocity Profile (Vane-E) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  15. Axial Velocity Profile (Vane-F) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  16. Axial Velocity Profile (Vane-G) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  17. Transverse Velocity Contour (Base Nozzle) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  18. Transverse Velocity Contour (Base Nozzle) X=12.27Df X=7.73Df X=11.0Df Top: Computational Bottom: Exp

  19. Transverse Velocity Contour (Vane-A) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  20. Transverse Velocity Contour (Vane-A) X=12.27Df X=7.73Df X=11.0Df Top: Computational Bottom: Exp

  21. Transverse Velocity Contour (Vane-B) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  22. Transverse Velocity Contour (Vane-B) X=12.27Df X=7.73Df X=11.0Df Top: Computational Bottom: Exp

  23. Transverse Velocity Contour (Vane-C) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  24. Transverse Velocity Contour (Vane-C) X=12.27Df X=7.73Df X=11.0Df Top: Computational Bottom: Exp

  25. Transverse Velocity Contour (Vane-D) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  26. Transverse Velocity Contour (Vane-D) X=7.73Df X=12.27Df X=11.0Df Top: Computational Bottom: Exp

  27. Transverse Velocity Contour (Vane-E) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  28. Transverse Velocity Contour (Vane-E) X=7.73Df X=12.27Df X=11.0Df Top: Computational Bottom: Exp

  29. Transverse Velocity Contour (Vane-F) X=5.91Df X=0.45Df X=3.18Df Top: Computational Bottom: Exp

  30. Transverse Velocity Contour (Vane-F) X=7.73Df X=12.27Df X=11.0Df Top: Computational Bottom: Exp

  31. Transverse Velocity Contour (Vane-G) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  32. Transverse TKE Contour (Base Nozzle) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  33. Transverse TKE Contour (Vane-A) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  34. Transverse TKE Contour (Vane-B) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  35. Transverse TKE Contour (Vane-C) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  36. Transverse TKE Contour (Vane-D) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  37. Transverse TKE Contour (Vane-E) X=0.45Df X=3.18Df X=5.91Df X=12.27Df X=11.0Df X=7.73Df

  38. Transverse TKE Contour (Vane-F) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=11.0Df X=12.27Df

  39. Transverse TKE Contour (Vane-G) X=0.45Df X=3.18Df X=5.91Df X=7.73Df X=12.27Df X=11.0Df

  40. Experiment Computational Isocontours of axial velocity, u/Up, on symmetry plane for base nozzle.

  41. Experiment Computational Isocontours of radial velocity gradient on symmetry plane for base nozzle.

  42. Experiment Computational Isocontours of axial velocity, u/Up, on symmetry plane for Vane-D.

  43. Experiment Computational Isocontours of radial velocity gradient on symmetry plane for Vane-D.

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