3. Stator Stator Land Leakage Flow High Pressure Region Low Pressure Region Seal Teeth (“Knife Edges”) Rotor

4. tL cr b f2 h f1 w h/2 θ t rs

5. L3 L2 L1 Stator Upstream Annuls Stator Land Downstream Annuls tL Seal Teeth Rotor rL,1 rL,2

7. cr Pup Tup RPMFup Pdown ω

8. B B A

10. Coarse Very Coarse Fine Medium

12. XX YY ZZ T = T = =

13. Total Temperature (F) Stream Function (lbm/s) Pressure (psia)

14. Swirl Velocity (ft/s) RPMF % Swirl Velocity

15. Total Relative Temperature (F) Total Temperature (F)

16. Total Temperature no viscous work (F)

18. Axial=6.309” Axial=5.136”

19. XX YY ZZ

20. 10 Mil Clearance

21. Total Temperature (F) Stream Function (lbm/s) Pressure (psia)

22. Swirl Velocity (ft/s) RPMF % Swirl Velocity

23. Total Relative Temperature (F) Total Temperature (F)

25. Axial=6.309” Axial=5.136”

26. XX YY ZZ

27. 15 Mil Clearance

28. Total Temperature (F) Stream Function (lbm/s) Pressure (psia)

29. Swirl Velocity (ft/s) RPMF % Swirl Velocity

30. Total Relative Temperature (F) Total Temperature (F)

32. Axial=6.309” Axial=5.136”

33. XX YY ZZ

34. 5 mil Fixed Pressure 10 mil 15 mil

35. Fixed Pressure

36. Fixed Flow 5 mil 10 mil 15 mil

37. Fixed Flow Fixed Flow

38. Fixed Flow 5 mil 10 mil 15 mil

40. Trotor=500F Tstator=500F

41. Trotor=1500F Tstator=1500F

42. Trotor=500F; Tt,rel Contours

43. Trotor=500F No Viscous Heating Tstator=500F No Viscous Heating

45. tfoil Cell Size

50. Pressure (psia)