Tip clearance

Tip clearance is the distance between the tip of a rotating airfoil and a stationary part.

• Gas turbine: Rotor blade and casing[1]

• Propeller (ship or aircraft): Propeller and structure[2]
  • Ground tip clearance
• Wind turbine: blade and tower [3]

The inlet of an EJ200, showing rotor and stator blades. The narrow clearance between the rotor (first set of blades) and the casing is visible.

References

1. Boyce, Meherwan P. (2002). Gas turbine engineering handbook. Gulf Professional Publishing. p. 365. ISBN 0-88415-732-6. Retrieved 2009-03-16. gas turbine tip clearance.
2. Breslin, John P.; Poul Andersen (1996). Hydrodynamics of Ship Propellers. Cambridge University Press. p. 424. ISBN 0-521-57470-6. Retrieved 2009-03-16.
3. Burton, Tony; David Sharpe; Nick Jenkins; Ervin Bossanyi (2001). Wind Energy Handbook. John Wiley and Sons. p. 464. ISBN 0-471-48997-2. Retrieved 2009-03-16.