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NSTX Thomson Scattering and NB Analysis Update: Maxwell /ANSYS Generated EM Loads

NSTX Thomson Scattering and NB Analysis Update: Maxwell /ANSYS Generated EM Loads. 12-01-10. Steady-State Maxwell EM Analysis: PF and TF Coil Loads: Current Scenario #79 with 10% Headroom. ANSYS WB Solid Model of Simplified Coil Assembly Exported to Maxwell.

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NSTX Thomson Scattering and NB Analysis Update: Maxwell /ANSYS Generated EM Loads

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  1. NSTX Thomson Scattering and NB Analysis Update: Maxwell/ANSYS Generated EM Loads 12-01-10

  2. Steady-State Maxwell EM Analysis:PF and TF Coil Loads:Current Scenario #79 with 10% Headroom

  3. ANSYS WB Solid Model of Simplified Coil Assembly Exported to Maxwell

  4. ANSYS WB Solid Model of Simplified Coil Assembly Exported to Maxwell(2)

  5. Maxwell Solid Model with Vacuum Enclosure

  6. Maxwell and Opera Field Results Agree within 3% Maxwell Results: Magnetic Flux Density on Y-Z Plane Current Scenario #79 w/ Headroom

  7. Maxwell Results: Magnetic Flux Density on Coil Surfaces Current Scenario #79 w/ Headroom

  8. Maxwell Results: Magnetic Flux Density on Coil Surfaces(2) Current Scenario #79 w/ Headroom

  9. Maxwell Results: Current Density on Coil Surfaces Current Scenario #79 w/ Headroom

  10. Hex Dominant Mesh Element Size = 5 cm # Nodes = 685908 # Elements = 131969 ANSYS WB Full Model Mesh

  11. TF OOP Torque = 1.271E06 ft-lbf TF OOP Force = 12 x 24,103 lbf = 2.892E05 lbf TF Outer Leg OOP Torque and Force, Fixed Ends, No Clevis Load Current Scenario #79 w/ Headroom

  12. OOP Torque = 9.99E04 ft-lbf OOP Force/Flag = 9.99E04 ft-lbf/ (1 ft x 36) = 2.775E03 lbf TF Inner Leg OOP Torque, OOP Force/ Flag: Fixed Ends Current Scenario #79 w/ Headroom

  13. Maxwell/ANSYS WB EM Generated Loads: Half Plane TF OOP Torque Current Scenario #79w/ Headroom

  14. Maxwell/ANSYS WB EM Generated Loads: PF1AU Vertical Force Current Scenario #79 w/ Headroom

  15. Maxwell/ANSYS WB EM Generated Loads: PF2U Vertical Force Current Scenario #79 w/ Headroom

  16. Maxwell/ANSYS WB EM Generated Loads: PF3U Vertical Force Current Scenario #79 w/ Headroom

  17. Maxwell/ANSYS WB EM Generated Loads: PF5U Vertical Force Current Scenario #79 w/ Headroom

  18. Transient Maxwell EM Analysis:Vacuum Vessel Disruption Load:Centered-Plasma Disruption Scenario

  19. ANSYS WB Solid Model of Simplified Coil and VV Exported to Maxwell

  20. Maxwell Solid Model with Vacuum Enclosure

  21. Maxwell Vacuum Vessel Mesh: Required VV Mesh Settings: Element Length = 2.54 cm, Faceting Angle = 1 degree

  22. Maxwell Results: Eddy Current Density on Vacuum Vessel Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  23. Maxwell Results: Magnetic Flux Density on Vacuum Vessel Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  24. ANSYS DM Solid Model: Vacuum Vessel w/ Port Extensions

  25. Results for ½ Required Mesh Density ANSYS WB Static Structural Model: Mesh Required VV Mesh Settings: Automatic Sweep, # Divisions = 5; Mesh Size = 1 cm

  26. Results for ½ Required Mesh Density ANSYS Static Structural Results w/o Port Extensions: von Mises Stress Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  27. Results for ½ Required Mesh Density ANSYS Static Structural Results w/o Port Extensions: von Mises Stress (2) Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  28. Results for ½ Required Mesh Density ANSYS Static Structural Results w/o Port Extensions: von Mises Stress (3) Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  29. Results for ½ Required Mesh Density ANSYS Static Structural Results w/ Port Extensions: von Mises Stress Centered-Plasma Disruption: Current Scenario #79 w/ Headroom Background Field

  30. Next Steps • Rerun Analysis with Twice the Mesh Density • Maxwell model is now running, expect ANSYS results by Friday • Run Maxwell with Port Extensions included in Eddy Current Solution • Verify that not including Port Extensions in Eddy Current solution is conservative • Export Disruption Load to Global Model

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