1 / 20

Navier-Stokes Modeling for HAWT by CFX 5.7

Chapter 2. Navier-Stokes Modeling for HAWT by CFX 5.7. Rotor Geometry. FIL-1000. 1. Diameter : 54.5 m. 2. Rated Power : 1MW (Design wind speed – 10 m/s). 3. TSR : 7.5 (Design point). 4. Rotating Speed : 26.28 rpm. 5. Power Control Type : Stall regulated.

tejano
Download Presentation

Navier-Stokes Modeling for HAWT by CFX 5.7

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 2 Navier-Stokes Modeling for HAWT by CFX 5.7

  2. Rotor Geometry FIL-1000 1. Diameter : 54.5 m 2. Rated Power : 1MW (Design wind speed – 10 m/s) 3. TSR : 7.5 (Design point) 4. Rotating Speed : 26.28 rpm 5. Power Control Type : Stall regulated 6. Airfoil Sections : NACA 63415, NACA 63418, DU-Series, FFA Series (From Tip to Hub)

  3. Details of Specification ROOT TIP

  4. Geometry Modeling

  5. Computational Mesh • Mesh Generation : ICEM-CFD 5.0 • Mesh Type : Unstructured Hexa • 480,000 nodes

  6. Computational Mesh • Chord length : 175 nodes • Radial direction : 40 nodes • O-GRID

  7. Computational Mesh • Chord length : 175 nodes • Hybrid-Mesh : Casing (Tetra-Prism) • 220,000 nodes

  8. Turbulence Modeling # K-W SST Model with High Resolution • Accounts for the transport of the turbulence shear stress and gives • very highly accurate predictions of the onset and the amount of • flow separation under adverse pressure gradients • Improve the accuracy for the predictions of the flow separation from • a smooth surface : Important phenomenon in many industrial fields, • particularly for airplane industries • The most prominent two equation model Ref.: Menter, F.R.., “Two equation eddy-viscosty turbulence models for engineering applications” AIAA Journal, 32(8), 1994

  9. Calculation Conditions

  10. Boundary Conditions • Inflow (Normal velocity) • Rotating Frame + Stationary Frame • Periodic surfaces(GGI) • Frame change model : Frozen rotor Interface with rotor and casing • Outflow (Static Pressure)

  11. Results TSR : 3 TSR : 7.5 TSR : 10 Surface Pressure Distribution on the Suction Side

  12. Results TSR : 3 TSR : 7.5 TSR : 10 Surface Streamline on the Suction Side

  13. Results TSR : 3 TSR : 7.5 TSR : 10 Sliced Streamline – 5m from Root

  14. Results TSR : 3 TSR : 7.5 TSR : 10 Sliced Streamline – 10m from Root

  15. Results TSR : 3 TSR : 7.5 TSR : 10 Sliced Streamline – 15m from Root

  16. Results TSR : 3 TSR : 7.5 TSR : 10 Sliced Streamline – 20m from Root

  17. Results

  18. Future Works 수행완료 진행 예정

More Related