Span Loading and Formation of Wake

  • Peter F. Jordan


Classical analyses of aircraft wake formation assume that the wing span loading is (essentially) elliptic, and that in consequence the wake starts out being (essentially) flat. This assumption is incorrect: actual span loadings contain a logarithmic term, and in consequence there is an infinite upwash directly behind the wing just inside the wing tips. This explains why the aircraft wake rolls up faster than the classical analyses predict.


Vortex Sheet Wing Span Vertical Tangent Kutta Condition Lift Line 
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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • Peter F. Jordan
    • 1
  1. 1.RIAS, Martin Marietta Corp.USA

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